Description

These delicious Cheesy Prime Rib Stuffed Zucchini Boats are a satisfying, flavorful way to repurpose leftover prime rib into a fresh, new family-friendly dinner. Tender zucchini is filled with a rich, cheesy steak mixture, baked to perfection, and ready to impress any night of the week.

Ingredients

Scale

4 medium zucchinis, halved lengthwise
2 cups cooked prime rib, diced
1 tablespoon olive oil
1 small yellow onion, finely chopped
1 red bell pepper, diced
3 cloves garlic, minced
1 cup baby spinach, chopped
1 cup marinara sauce or crushed tomatoes
1 teaspoon Italian seasoning
1 teaspoon onion powder
1 teaspoon garlic powder
1 cup shredded mozzarella cheese
1/2 cup shredded cheddar cheese
1/4 cup grated Parmesan cheese
Salt and pepper to taste
Fresh parsley, chopped for garnish

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Instructions

Preheat oven to 375°F (190°C). Lightly grease a baking dish.
Cut zucchinis in half lengthwise. Scoop out the centers to create “boats,” leaving enough shell for stability. Finely chop some of the scooped zucchini to use in the filling.
Heat olive oil in a skillet over medium heat. Add onion and bell pepper and sauté for 3–4 minutes until softened.
Stir in garlic and chopped zucchini and cook an additional 2 minutes.
Add diced prime rib and spinach. Cook until the spinach wilts and beef is warmed through.
Season with Italian seasoning, onion powder, garlic powder, salt, and pepper. Stir in marinara sauce and simmer 2 minutes.
Spoon the filling into each zucchini boat. Top with mozzarella, cheddar, and Parmesan cheese.
Cover baking dish with foil and bake for 20 minutes. Remove foil and bake an additional 8–10 minutes, or until cheese is melted and lightly golden.
Remove from oven, garnish with parsley, and serve warm.

Notes

You can pre-bake the zucchini shells for 5–7 minutes before filling if you prefer a softer texture. Any leftover cooked beef can be used in place of prime rib. To reduce moisture, pat zucchini dry after scooping. Customize the cheese blend to your taste for extra richness.

Prep Time: 15 minutes
Cook Time: 30 minutes