Cheesy Beef, Rice & Shells Casserole
If you’re searching for the ultimate comfort food that the whole family will love, this Cheesy Beef, Rice & Shells Casserole is the perfect recipe. It combines tender pasta shells, seasoned ground beef, fluffy rice, colorful vegetables, and plenty of melted cheese into one hearty, satisfying bake. Every bite is packed with rich, savory flavors, while the creamy optional sauce adds an extra layer of indulgence. This casserole is ideal for busy weeknights, potlucks, meal prep, or whenever you need a filling dinner that can feed a crowd. Best of all, it’s easy to customize with your favorite vegetables, cheeses, or seasonings, making it a reliable family favorite you’ll want to prepare again and again.
Preparation Time
20 minutes
Cooking Time
40 minutes
Total Time
1 hour
Servings
8
Ingredients
Main Ingredients
1 to 1½ pounds ground beef (80–85% lean).
1 cup uncooked long-grain white rice or 2–3 cups cooked white rice.
8 ounces to 1 pound medium pasta shells.
1½ to 2 cups shredded cheddar cheese, mozzarella cheese, or a cheese blend.
Produce & Aromatics
1 to 3 large green bell peppers, diced.
1 small to medium yellow onion, diced.
2 to 4 garlic cloves, minced.
Fresh parsley, chopped, for garnish.
Liquids & Pantry Staples
1 to 2 cups beef broth.
1 can (14–15 ounces) diced tomatoes, drained.
1 can (10.5 ounces) cream of mushroom or cream of chicken soup (optional).
½ cup sour cream (optional).
1 to 2 tablespoons olive oil.
Seasonings
½ to 1 teaspoon paprika.
½ to 1 teaspoon garlic powder.
½ to 1 teaspoon onion powder.
1 tablespoon Italian seasoning.
Salt, to taste.
Freshly cracked black pepper, to taste.
Instructions
Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch casserole dish.
If using uncooked rice, prepare it according to the package directions until tender. Set it aside.
Cook the pasta shells in a large pot of salted boiling water until just al dente. Drain well and set aside.
Heat the olive oil in a large skillet over medium-high heat.
Add the diced onion and green bell peppers. Cook for about 5 minutes until softened.
Stir in the minced garlic and cook for another 30 seconds until fragrant.
Add the ground beef and cook until fully browned, breaking it into small crumbles as it cooks. Drain any excess grease if necessary.
Season the beef mixture with paprika, garlic powder, onion powder, Italian seasoning, salt, and black pepper.
Add the drained diced tomatoes and beef broth. Stir well and simmer for about 5 minutes.
If using the cream base, stir in the cream of mushroom or cream of chicken soup along with the sour cream until smooth and creamy.
Fold in the cooked rice and cooked pasta shells, mixing gently until everything is evenly coated.
Stir in half of the shredded cheese.
Transfer the mixture to the prepared casserole dish and spread it into an even layer.
Sprinkle the remaining shredded cheese evenly over the top.
Bake uncovered for 20 to 25 minutes, or until the cheese is completely melted, bubbly, and lightly golden.
Allow the casserole to rest for about 10 minutes before serving.
Garnish with freshly chopped parsley and serve warm with garlic bread or a crisp green salad.
Tips
For the Best Results
Cook the pasta just until al dente because it will continue cooking in the oven.
Freshly shred your cheese for smoother melting and a creamier texture.
Drain excess grease from the beef to prevent the casserole from becoming oily.
Use freshly cooked rice for the fluffiest texture.
Allow the casserole to rest before serving so it slices neatly.
Avoid overbaking to keep the pasta tender.
Taste the beef mixture before baking and adjust the seasoning if necessary.
Use a blend of cheddar and mozzarella for both rich flavor and stretchy cheese.
Cover with foil if the cheese begins browning too quickly.
Store leftovers in airtight containers for easy lunches throughout the week.
Variations
Easy Ways to Customize
Replace the ground beef with ground turkey or chicken.
Add sliced mushrooms for an earthy flavor.
Mix in corn kernels or peas for extra vegetables.
Use pepper Jack cheese for a spicy variation.
Add diced jalapeños for extra heat.
Replace white rice with brown rice for additional fiber.
Stir spinach into the beef mixture during the final few minutes of cooking.
Use rotini or elbow macaroni instead of pasta shells.
Top with crushed buttery crackers before baking for a crispy topping.
Drizzle hot sauce over individual servings for extra flavor.
Q&A
Can I prepare this casserole ahead of time?
Yes. Assemble the casserole, cover it tightly, and refrigerate for up to 24 hours before baking.
Can I freeze it?
Yes. Cool completely, wrap well, and freeze for up to three months. Thaw overnight before reheating.
Can I use leftover rice?
Absolutely. Leftover cooked rice works perfectly and saves preparation time.
What cheese melts best?
Mozzarella provides a stretchy cheese pull, while cheddar adds rich flavor. A combination of both works wonderfully.
Can I make it without the cream soup?
Yes. The casserole is still delicious without it, although the texture will be less creamy.
How do I keep the casserole from drying out?
Use enough broth and avoid overbaking. Cover loosely with foil if needed during baking.
Can I add more vegetables?
Yes. Mushrooms, zucchini, spinach, carrots, peas, or corn are all excellent additions.
What should I serve with this casserole?
Garlic bread, roasted vegetables, steamed broccoli, Caesar salad, or a simple green salad all pair beautifully.
Nutrition
Per Serving (Approximate)
Calories: 520
Protein: 29g
Carbohydrates: 39g
Fat: 27g
Saturated Fat: 11g
Fiber: 3g
Sugar: 5g
Sodium: 690mg
Calcium: 260mg
Iron: 3.8mg
Conclusion
This Cheesy Beef, Rice & Shells Casserole is the definition of hearty, homemade comfort food. Combining savory ground beef, tender pasta shells, fluffy rice, colorful vegetables, and layers of melted cheese, it’s a satisfying one-pan meal that’s perfect for family dinners, potlucks, or weekly meal prep. Easy to customize with different cheeses, vegetables, or proteins, this casserole is both versatile and crowd-pleasing. Serve it fresh from the oven with your favorite side dishes, and enjoy a warm, cheesy meal that’s sure to become a regular favorite in your recipe collection.