There’s something magical about a bubbling casserole fresh from the oven—the golden crust, the creamy interior, and that comforting aroma filling your kitchen. This Loaded Vegetarian Hash Brown Casserole is the perfect dish for cozy weekend mornings, family gatherings, or any potluck where you want to impress without the fuss. It’s hearty, cheesy, and satisfying, yet completely meat-free, making it a dish everyone can enjoy.
This recipe was inspired by classic Southern comfort cooking but given a wholesome twist. By swapping the traditional meats for colorful vegetables, this casserole brings together rich flavors and textures that are both nostalgic and fresh. Whether you’re a vegetarian or simply looking for a delicious side dish that feels like a main course, this hash brown casserole will quickly become one of your go-to recipes.
Why You’ll Love This Recipe
If you’re searching for a dish that combines convenience, flavor, and comfort, look no further. Here’s why this Loaded Vegetarian Hash Brown Casserole stands out:
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Crowd-Pleasing Comfort Food: Perfect for brunches, potlucks, or holiday dinners—everyone goes back for seconds.
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Simple Ingredients: Uses easy-to-find staples like frozen hash browns, cheese, and fresh vegetables.
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Make-Ahead Friendly: You can assemble it the night before and bake it fresh in the morning.
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Completely Meat-Free: It’s vegetarian without sacrificing flavor or heartiness.
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Crispy on the Outside, Creamy Inside: Every bite has that perfect contrast of textures.
Ingredients
For the Casserole Base:
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1 (30-ounce) bag frozen shredded hash browns, thawed
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1 cup sour cream
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1 (10.5-ounce) can condensed cream of mushroom soup
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2 cups shredded sharp cheddar cheese
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1 cup chopped bell peppers (mix of red and green)
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1 cup chopped broccoli florets (lightly steamed)
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1 small onion, finely diced
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1 cup frozen corn, thawed
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2 tablespoons unsalted butter, melted
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½ teaspoon garlic powder
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½ teaspoon onion powder
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½ teaspoon smoked paprika
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½ teaspoon salt (adjust to taste)
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¼ teaspoon black pepper
For the Topping:
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1 cup crushed cornflakes or breadcrumbs
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2 tablespoons melted butter
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½ cup shredded cheddar cheese (optional for extra cheesiness)
Directions
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Preheat the Oven:
Set your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with non-stick spray or butter. -
Prepare the Hash Brown Mixture:
In a large mixing bowl, combine the thawed hash browns, sour cream, cream of mushroom soup, and 2 cups of shredded cheddar cheese. Stir until everything is evenly coated. -
Add the Vegetables:
Fold in the diced onion, chopped bell peppers, broccoli, and corn. Sprinkle in the garlic powder, onion powder, paprika, salt, and pepper. Mix well to distribute the seasoning evenly. -
Add Butter:
Pour in the melted butter and stir again to combine. This adds richness and helps the casserole bake to a perfect golden crust. -
Transfer to Baking Dish:
Spoon the mixture into your prepared baking dish, spreading it out evenly with a spatula. -
Prepare the Topping:
In a small bowl, combine the crushed cornflakes (or breadcrumbs) with melted butter. If you love extra cheese, mix in another ½ cup of cheddar. Sprinkle this topping evenly over the casserole. -
Bake:
Place the casserole in the preheated oven and bake uncovered for 45–50 minutes, or until the top is golden brown and the edges are bubbling. -
Cool Slightly and Serve:
Let the casserole cool for 5–10 minutes before serving. This helps it set and makes slicing easier.
Prep Time, Cook Time, Total Time, Yield
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Prep Time: 20 minutes
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Cook Time: 50 minutes
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Total Time: 1 hour 10 minutes
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Yield: 8 servings
Tips for the Perfect Vegetarian Hash Brown Casserole
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Thaw Hash Browns Properly:
Make sure the hash browns are fully thawed and patted dry. Excess moisture can make the casserole soggy. -
Add More Vegetables:
Feel free to mix in your favorites—spinach, zucchini, or mushrooms work beautifully. -
Use Fresh Cheese:
Shredding your cheese from a block melts better and gives a creamier texture than pre-shredded. -
Make It Ahead:
Assemble everything up to a day in advance, cover tightly, and refrigerate. Bake just before serving for the freshest flavor. -
Freezer-Friendly Option:
This casserole freezes wonderfully. Simply wrap tightly in foil and store for up to 2 months. Reheat in the oven at 350°F until warmed through.
Serving Suggestions
This Loaded Vegetarian Hash Brown Casserole is versatile enough to shine at any meal:
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Breakfast or Brunch: Serve with scrambled eggs or fresh fruit for a balanced start.
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Dinner Side Dish: Pairs beautifully with roasted chicken alternatives like baked tofu or grilled vegetables.
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Holiday Table: Perfect addition to Thanksgiving or Christmas spreads.
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Potluck Favorite: Easy to transport, stays warm, and always gets compliments.
You can even top it with fresh herbs like parsley or chives for a pop of color and flavor.
Variations to Try
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Southwest Style:
Add black beans, diced tomatoes, and a sprinkle of chili powder for a Tex-Mex twist. -
Mediterranean Flair:
Mix in olives, sun-dried tomatoes, spinach, and feta cheese. -
Broccoli Cheddar Classic:
Use extra broccoli and double the cheddar for that comforting, cheesy flavor. -
Spicy Kick:
Add diced jalapeños or a dash of hot sauce for heat lovers. -
Mushroom Lover’s Delight:
Substitute the cream of mushroom soup with homemade mushroom sauce and extra sautéed mushrooms for earthy richness.
How to Store and Reheat
Refrigeration:
After cooling completely, cover leftovers tightly with foil or plastic wrap. Store in the refrigerator for up to 4 days.
Reheating:
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Oven: Reheat at 350°F for about 20 minutes or until heated through.
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Microwave: Heat individual portions for 1–2 minutes, checking frequently.
Freezing:
Let the baked casserole cool completely, then wrap it securely in foil or freezer-safe wrap. It can be frozen for up to 2 months. When ready to enjoy, thaw overnight in the fridge and reheat in the oven.
Nutritional Information (Per Serving)
(Approximate values, depending on ingredients used)
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Calories: 310
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Total Fat: 18g
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Saturated Fat: 9g
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Cholesterol: 45mg
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Sodium: 640mg
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Carbohydrates: 28g
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Fiber: 3g
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Protein: 10g
This dish provides a satisfying combination of carbs, protein, and fat, making it a filling and balanced vegetarian option.
Why This Recipe Works
This casserole strikes the perfect balance between creamy, crispy, and flavorful. The condensed soup and sour cream form a rich, velvety base, while the combination of vegetables adds texture and color. The buttery topping seals it all with crunch and aroma.
Unlike many vegetarian dishes that rely heavily on imitation meats, this recipe keeps things simple and wholesome. It’s comfort food reimagined—warming, nourishing, and easy to make with everyday ingredients.
How to Make It Ahead of Time
One of the best parts of this casserole is its flexibility for busy schedules:
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Assemble Ahead: Combine all ingredients and spread them into your baking dish. Cover tightly with plastic wrap or foil and refrigerate for up to 24 hours.
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Bake When Ready: Remove from the fridge while preheating your oven, and bake as directed. Add an extra 5–10 minutes to ensure even heating.
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Freezer Option: Prepare and freeze the unbaked casserole for future meals. It’s ideal for holiday prep or meal planning.
This make-ahead option allows you to enjoy a homemade, oven-fresh dish even on your busiest mornings or evenings.
Expert Tips for Best Results
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Cheese Variety: Try mixing cheddar with mozzarella or Monterey Jack for extra meltiness.
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Texture Balance: Don’t skip the topping—it’s key to that satisfying crunch.
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Colorful Presentation: Use a mix of red, yellow, and green peppers for visual appeal.
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Flavor Boost: A sprinkle of dried thyme or Italian herbs can add subtle depth.
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Bake Until Golden: Wait until the top is deeply golden and bubbling for that perfect finish.
Pairing Ideas
Here are some great ways to serve and complement this casserole:
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With Eggs: Serve alongside scrambled or poached eggs for a full breakfast.
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With Salad: A crisp green salad with vinaigrette balances the richness.
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With Soup: Pair with tomato soup or vegetable chowder for a cozy dinner.
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With Fresh Fruit: Add a light, sweet contrast for brunch spreads.
This dish transitions easily from breakfast to dinner, making it one of the most versatile casseroles you’ll ever make.
Notes
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For extra creaminess, stir in 4 ounces of softened cream cheese before baking.
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If you prefer a firmer texture, reduce the sour cream slightly.
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To make it spicier, add a pinch of cayenne pepper or red pepper flakes.
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Let the casserole rest for at least 10 minutes before serving to make slicing cleaner.
Frequently Asked Questions
Can I use fresh potatoes instead of frozen hash browns?
Yes, you can. Peel and shred fresh potatoes, then squeeze out excess moisture using a clean towel. Keep in mind that fresh potatoes may release more water during baking, so add a few extra minutes to your cook time.
Can I make this recipe vegan?
Absolutely. Substitute the sour cream with a dairy-free version, use vegan cheese, and swap the cream of mushroom soup with a plant-based alternative. The texture and flavor remain deliciously creamy.
What can I use instead of cornflakes for the topping?
Breadcrumbs, crushed crackers, or even crispy fried onions work great as alternatives. Each brings a unique texture and flavor to the dish.
How can I make it healthier?
You can reduce the cheese slightly, use light sour cream, or swap half the potatoes for riced cauliflower. Adding extra vegetables also boosts the nutritional value while keeping the flavor intact.
Final Thoughts
This Loaded Vegetarian Hash Brown Casserole brings together everything you love about classic comfort food—cheesy goodness, crispy topping, and warm, familiar flavors. It’s a dish that satisfies both vegetarians and meat lovers alike, proving that you don’t need meat to create something hearty and delicious.
Whether it’s for a family brunch, a potluck, or a cozy Sunday dinner, this casserole delivers every time. Simple to prepare, endlessly customizable, and guaranteed to bring smiles around the table—this recipe truly earns its place as a household favorite.
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Loaded Vegetarian Hash Brown Casserole Everyone Will Love
- Total Time: 1 hour 5 minutes
- Yield: 8 servings 1x
Description
This Loaded Vegetarian Hash Brown Casserole is a warm, cheesy, and satisfying dish that brings comfort to any table. Perfect for brunches, family dinners, or potlucks, it’s packed with colorful vegetables, creamy layers, and a crispy golden topping. Whether you’re vegetarian or simply craving a hearty, meat-free comfort meal, this casserole is guaranteed to please everyone.
Ingredients
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1 (30-ounce) bag frozen shredded hash browns, thawed
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1 cup sour cream
-
1 (10.5-ounce) can condensed cream of mushroom soup
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2 cups shredded sharp cheddar cheese
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1 cup chopped bell peppers (mix of red and green)
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1 cup chopped broccoli florets (lightly steamed)
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1 small onion, finely diced
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1 cup frozen corn, thawed
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2 tablespoons unsalted butter, melted
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½ teaspoon garlic powder
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½ teaspoon onion powder
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½ teaspoon smoked paprika
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½ teaspoon salt
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¼ teaspoon black pepper
For the topping:
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1 cup crushed cornflakes or breadcrumbs
-
2 tablespoons melted butter
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½ cup shredded cheddar cheese (optional for extra cheesiness)
Instructions
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Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with non-stick spray or butter.
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In a large bowl, mix thawed hash browns, sour cream, cream of mushroom soup, and 2 cups of shredded cheddar cheese until well combined.
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Add chopped onion, bell peppers, broccoli, and corn. Stir in garlic powder, onion powder, smoked paprika, salt, and pepper until evenly mixed.
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Pour in the melted butter and stir again to coat everything evenly.
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Spread the mixture into the prepared baking dish, smoothing the top with a spatula.
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In a small bowl, mix crushed cornflakes (or breadcrumbs) with melted butter. Add ½ cup cheddar cheese if desired and sprinkle evenly over the casserole.
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Bake uncovered for 45–50 minutes, or until the top is golden and the edges are bubbling.
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Let cool for 5–10 minutes before serving to help it set.
Notes
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Thaw and pat dry the hash browns to prevent excess moisture.
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Substitute cream of mushroom soup with cream of celery if preferred.
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Make it ahead: Assemble the casserole, cover, and refrigerate overnight. Bake the next day as directed.
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Add your favorite vegetables like spinach, mushrooms, or zucchini for variety.
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For a spicier kick, include diced jalapeños or a pinch of red pepper flakes.
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To freeze, wrap tightly after baking and store for up to 2 months. Reheat in the oven until warmed through.
- Prep Time: 15 minutes
- Cook Time: 50 minutes



