Lasagna Stuffed Pasta Shells Casserole

When two comfort food favorites come together in one bubbling baking dish, it is hard not to get excited. That is exactly what happens with Lasagna Stuffed Pasta Shells Casserole. You get everything people love about classic lasagna—rich marinara, creamy cheese filling, hearty pasta, and plenty of melty goodness—but in the fun, scoopable form of stuffed shells. It is cozy, satisfying, and exactly the kind of dinner that makes everyone hurry to the table.

This recipe is one of my favorite ways to serve a lasagna-style meal without dealing with all the layering. The jumbo pasta shells do the work for you, holding onto that creamy ricotta filling while soaking up the sauce around them. Once baked until hot and bubbly, the whole dish feels like the kind of dinner that belongs on repeat all year long.

Why I Love This Recipe

I love this recipe because it takes all the familiar flavors of lasagna and turns them into something a little easier and a little more fun. Stuffed shells have that same hearty, cheesy comfort, but they also make serving simple. You can scoop out exactly what you need, and every portion feels like it has the perfect balance of sauce, pasta, and filling.

It is also a great make-ahead meal. You can assemble it earlier in the day, refrigerate it, and bake it when dinner rolls around. That makes it perfect for busy weeknights, casual entertaining, or anytime you want a dependable comfort-food dinner that does not feel stressful.

Ingredients

• 1 box jumbo pasta shells
• 1 pound ground beef or Italian sausage
• 1 tablespoon olive oil
• 1 small onion, finely chopped
• 3 cloves garlic, minced
• 1 jar or about 3 cups marinara sauce
• 1 teaspoon Italian seasoning
• Salt, to taste
• Black pepper, to taste

For the Cheese Filling

• 15 ounces ricotta cheese
• 2 cups shredded mozzarella cheese, divided
• 1/2 cup grated Parmesan cheese
• 1 large egg
• 2 tablespoons chopped parsley
• 1 teaspoon Italian seasoning
• 1/2 teaspoon garlic powder
• Salt, to taste
• Black pepper, to taste

Swaps and Notes

Ground beef gives the casserole a classic lasagna feel, while Italian sausage adds extra seasoning and richness. You can even use a mix of both if you want the best of both worlds.

If you prefer a meatless version, skip the meat and add sautéed spinach, mushrooms, or zucchini to the sauce or cheese filling. Cottage cheese can also stand in for ricotta if that is what you already have on hand, though ricotta gives the filling a more traditional texture.

Jarred marinara makes this recipe very weeknight-friendly, but if you have a favorite homemade sauce, it will absolutely shine here.

How to Make Lasagna Stuffed Pasta Shells Casserole

1. Preheat your oven to 375°F and lightly grease a 9×13-inch baking dish.
2. Bring a large pot of salted water to a boil and cook the jumbo shells just until al dente. Drain and set aside to cool enough to handle.
3. In a large skillet, heat the olive oil over medium heat. Add the onion and cook until softened, then add the garlic and cook for about 30 seconds.
4. Add the ground beef or sausage and cook until browned, breaking it up as it cooks. Drain excess grease if needed.
5. Stir in the marinara sauce, Italian seasoning, salt, and pepper. Simmer for a few minutes to bring the flavors together.
6. In a large bowl, mix the ricotta, 1 cup of mozzarella, Parmesan, egg, parsley, Italian seasoning, garlic powder, salt, and pepper until combined.
7. Spread a layer of the meat sauce in the bottom of the prepared baking dish.
8. Fill each cooked shell with the ricotta mixture and place it in the dish over the sauce.
9. Spoon the remaining sauce over the stuffed shells, then top with the remaining mozzarella.
10. Cover with foil and bake for 25 minutes. Uncover and bake for another 10 to 15 minutes, until the cheese is melted and bubbly.
11. Let it rest for a few minutes before serving.

Tips for Success

Do not overcook the shells during the boiling step. They will continue cooking in the oven, so keeping them just al dente helps them hold their shape and makes them easier to stuff.

A piping bag or zip-top bag with the corner snipped off makes filling the shells faster and less messy. A spoon works too, but piping gives you cleaner, quicker results.

Let the casserole rest for about 5 to 10 minutes after baking. That little bit of time helps everything settle and makes serving much easier.

Serving Suggestions and Pairings

This casserole is rich, cheesy, and deeply comforting, so I love pairing it with a simple salad or warm bread. For another pasta-night favorite, Classic Spaghetti Recipe with Homemade Sauce is a great recipe to keep in your rotation when you are craving more saucy comfort food.

If you want a cozy dinner lineup with another lasagna-style favorite, This Instant Pot Lasagna Is My Favorite Way to Make Comfort Food Fast is a smart choice for nights when you want similar flavors with a different approach.

And if you are putting together a casual dinner for guests, This Baked Brie Appetizer Is My Favorite Effortless Way to Impress Guests makes a warm and easy starter before the main dish hits the table.

Nutritional Information Per Serving

Estimated for 6 servings:

• Calories: 540
• Protein: 31g
• Carbohydrates: 35g
• Fat: 30g
• Fiber: 3g
• Sugar: 6g
• Sodium: 780mg

These numbers can vary depending on the sauce, meat, and exact amount of cheese used.

Storage and Leftover Tips

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave, or warm the whole casserole in the oven covered with foil until heated through.

This is also a great freezer meal. Assemble it, cover tightly, and freeze before baking, or freeze leftovers in portions for easy future dinners. Just thaw overnight in the refrigerator before reheating for the best texture.

More Recipes You Will Love

If your family loves cheesy baked dinners, These Chicken Enchiladas Are My Go-To for Cozy Crowd-Pleasing Dinners bring that same warm, satisfying appeal in a totally different flavor direction.

And if you want something fun and shareable for another casual dinner night, Easy Cheesy Chicken Sliders with Marinara Garlic Butter deliver big comfort-food energy in handheld form.

Final Thoughts

Lasagna Stuffed Pasta Shells Casserole is exactly the kind of recipe that earns a spot in the regular dinner rotation. It is cheesy, hearty, comforting, and just a little easier than traditional lasagna without giving up any of the flavor that makes people love it. It is the kind of baked pasta dish that feels dependable in the best possible way.

If you make it, I would love to hear how you served it. Did you keep it classic, add sausage, or sneak in extra cheese? Share your version and follow along for more easy, crave-worthy recipes from Jason Griffith at Chef Maniac.