I can never resist a bubbling casserole packed with creamy shells, savory beef, and melty cheese. This is the kind of dinner that disappears fast and has everyone asking for seconds.

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I’m obsessed with this Creamy Beef Shells Casserole because it’s messy in the best way: rich, beefy, and loaded with that thick, glossy sauce that clings to every bite. I love how the ground beef makes it feel like a full dinner, while sharp cheddar cheese brings that bold, salty bite I keep going back for.

But the real pull is the texture. Soft shells, saucy pockets, browned edges, big forkfuls.

No tiny polite servings here. And I adore a casserole that tastes like I put in way more effort than I actually did.

Weeknight dinner, but make it craveable.

Ingredients

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Pasta shells catch all that creamy sauce, so every bite feels extra cozy.
Ground beef makes it hearty, filling, and very weeknight-dinner approved.
Yellow onion adds a sweet, savory base without trying too hard.
Garlic brings that “something smells amazing” moment before dinner even starts.
Butter and flour help the sauce turn thick, smooth, and clingy.
Whole milk keeps things creamy without making it feel too heavy.
Heavy cream is the rich part, and honestly, it’s worth it.
Beef broth adds deeper flavor, so the sauce doesn’t taste flat.
Cream cheese makes everything velvety, tangy, and kind of irresistible.
Sharp cheddar gives that bold, melty casserole vibe you’ll crave.
Parmesan adds salty nuttiness, like a little flavor boost.
Oregano, basil, and paprika keep it cozy, warm, and not boring.
Breadcrumbs add crunch on top, which is always a good move.
Plus, parsley makes it look fresh, even though it’s total comfort food.

Ingredient Quantities

12 ounces medium pasta shells

1 pound ground beef

1 medium yellow onion, finely chopped

2 cloves garlic, minced

2 tablespoons unsalted butter

2 tablespoons all purpose flour

1 cup whole milk

1 cup heavy cream

1/2 cup low sodium beef broth

8 ounces cream cheese, softened

2 cups shredded sharp cheddar cheese

1/2 cup grated Parmesan cheese

1 teaspoon kosher salt

1/2 teaspoon freshly ground black pepper

1 teaspoon dried oregano

1 teaspoon dried basil

1/2 teaspoon smoked paprika or regular paprika

1/2 cup plain breadcrumbs (optional for topping)

2 tablespoons chopped fresh parsley for garnish, optional

How to Make this

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1. Preheat oven to 375 F and butter or spray a 9×13 inch baking dish. Cook 12 ounces medium pasta shells in salted boiling water until just al dente, drain and set aside.

2. In a large skillet over medium heat, brown 1 pound ground beef with 1 medium finely chopped yellow onion and 2 minced garlic cloves until beef is cooked through and onion is translucent; drain excess fat.

3. Stir into the beef 1 teaspoon dried oregano, 1 teaspoon dried basil, 1/2 teaspoon smoked or regular paprika, 1 teaspoon kosher salt and 1/2 teaspoon freshly ground black pepper; remove from heat.

4. In a medium saucepan over medium heat, melt 2 tablespoons unsalted butter. Whisk in 2 tablespoons all purpose flour and cook 1 to 2 minutes until lightly golden.

5. Gradually whisk in 1 cup whole milk, 1 cup heavy cream and 1/2 cup low sodium beef broth until smooth. Simmer gently for 3 to 5 minutes until slightly thickened.

6. Remove sauce from heat and whisk in 8 ounces softened cream cheese until melted and smooth. Stir in 2 cups shredded sharp cheddar cheese and 1/2 cup grated Parmesan cheese until fully incorporated.

7. Combine cooked pasta, the beef and onion mixture, and the cheese sauce in a large bowl; toss until evenly coated. Taste and adjust seasoning if needed.

8. Transfer mixture to the prepared baking dish. If using, sprinkle 1/2 cup plain breadcrumbs evenly over the top and grate a little extra Parmesan if desired for color.

9. Bake in preheated oven for 20 to 25 minutes until sauce is bubbly and top is golden. For a deeper crust, broil 1 to 2 minutes while watching closely.

10. Let rest 5 minutes, garnish with 2 tablespoons chopped fresh parsley if desired, then serve hot.

Equipment Needed

1. Large stock pot for boiling pasta
2. Colander for draining pasta
3. 9×13 inch baking dish, buttered or sprayed
4. Large skillet for browning the beef and aromatics
5. Medium saucepan for the cheese sauce
6. Whisk for the roux and sauce
7. Wooden spoon or heatproof spatula for stirring and tossing
8. Measuring cups and spoons for liquids and seasonings
9. Box grater for shredding cheese and grating extra Parmesan

FAQ

Q: How long does this casserole take to make and bake?: Prep about 20 minutes, assemble 10 minutes, then bake 20 to 25 minutes until bubbly and golden on top for a total of roughly 50 to 55 minutes.

Q: Can I use a different pasta shape or type of pasta?: Yes. Any medium to large short pasta that holds sauce well works, for example rotini, rigatoni, or shells of a similar size. If using whole wheat or gluten free pasta adjust cooking time and monitor texture.

Q: What are good substitutions for dairy ingredients?: For lighter dairy, swap whole milk for 2 percent and heavy cream for half and half though sauce will be less rich. For a lactose reduced version try lactose free milk and cream cheese. Non dairy substitutes will change flavor and may thin the sauce so use a thickener or extra cream cheese alternative.

Q: Can I make this ahead and reheat later?: Yes. Assemble the casserole but do not bake, cover tightly and refrigerate up to 24 hours. Add 10 to 15 minutes to baking time if baking straight from the fridge. Fully baked leftovers keep well refrigerated for 3 to 4 days.

Q: How should I freeze this casserole?: Bake first or freeze unbaked. For unbaked, assemble in a freezer safe dish, cover tightly and freeze up to 3 months. Thaw overnight in the fridge then bake, adding about 15 to 20 minutes to the baking time. For baked, cool completely, wrap well and freeze up to 3 months, then thaw overnight and reheat covered at 350 F until heated through.

Q: How do I get a crisp topping and avoid a soggy breadcrumb layer?: Toss breadcrumbs with a little melted butter and sprinkle over the casserole in the last 10 to 12 minutes of baking, or broil for 1 to 2 minutes while watching closely to brown without burning.

Rich And Comforting Creamy Beef Shells Casserole Recipe Substitutions and Variations

Ground beef: ground turkey or chicken for leaner option, Italian sausage for more seasoning, cooked lentils or chopped mushrooms for a vegetarian swap
Cream cheese: mascarpone for similar richness, full fat Greek yogurt or strained cottage cheese blended smooth for tangy lower fat options
Whole milk and heavy cream: half and half for lighter creaminess, evaporated milk mixed with a little butter for richness, full fat coconut milk for a dairy free choice
Pasta shells: penne, rigatoni, or ziti for similar hold and sauce capture, or medium elbow macaroni for a more classic casserole texture

Pro Tips

1) Salt the pasta water well and undercook the shells by about 1 minute. They will finish cooking in the oven and stay tender instead of mushy. Reserve 1/2 cup of the pasta cooking water in case the sauce needs loosening.

2) Get good color on the browned beef. Let it sit undisturbed in the pan for short intervals while cooking so it develops little caramelized bits. Those browned bits add savory depth to the whole dish.

3) Soften and warm the cream cheese slightly before adding it to the sauce. Room temperature cream cheese or a few seconds in the microwave will help it whisk in smoothly and prevent lumps.

4) For a crunchy topping that holds up, toss the breadcrumbs with a tablespoon of melted butter and a pinch of salt before sprinkling. If you like extra richness, mix in a little grated Parmesan.

5) Make-ahead and leftovers tip: assemble everything up to the baking step and refrigerate for up to 24 hours. Add a few extra minutes to the bake time if starting cold. This casserole also freezes well in portions; thaw overnight in the fridge before reheating for best texture.

Rich And Comforting Creamy Beef Shells Casserole Recipe

Recipe by Sarah level

0.0 from 0 votes

I can never resist a bubbling casserole packed with creamy shells, savory beef, and melty cheese. This is the kind of dinner that disappears fast and has everyone asking for seconds.

Servings

servings

Calories

949

kcal

Equipment: 1. Large stock pot for boiling pasta
2. Colander for draining pasta
3. 9×13 inch baking dish, buttered or sprayed
4. Large skillet for browning the beef and aromatics
5. Medium saucepan for the cheese sauce
6. Whisk for the roux and sauce
7. Wooden spoon or heatproof spatula for stirring and tossing
8. Measuring cups and spoons for liquids and seasonings
9. Box grater for shredding cheese and grating extra Parmesan

Ingredients

12 ounces medium pasta shells
1 pound ground beef
1 medium yellow onion, finely chopped
2 cloves garlic, minced
2 tablespoons unsalted butter
2 tablespoons all purpose flour
1 cup whole milk
1 cup heavy cream
1/2 cup low sodium beef broth
8 ounces cream cheese, softened
2 cups shredded sharp cheddar cheese
1/2 cup grated Parmesan cheese
1 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
1 teaspoon dried oregano
1 teaspoon dried basil
1/2 teaspoon smoked paprika or regular paprika
1/2 cup plain breadcrumbs (optional for topping)
2 tablespoons chopped fresh parsley for garnish, optional

Directions

Preheat oven to 375 F and butter or spray a 9×13 inch baking dish. Cook 12 ounces medium pasta shells in salted boiling water until just al dente, drain and set aside.
In a large skillet over medium heat, brown 1 pound ground beef with 1 medium finely chopped yellow onion and 2 minced garlic cloves until beef is cooked through and onion is translucent; drain excess fat.
Stir into the beef 1 teaspoon dried oregano, 1 teaspoon dried basil, 1/2 teaspoon smoked or regular paprika, 1 teaspoon kosher salt and 1/2 teaspoon freshly ground black pepper; remove from heat.
In a medium saucepan over medium heat, melt 2 tablespoons unsalted butter. Whisk in 2 tablespoons all purpose flour and cook 1 to 2 minutes until lightly golden.
Gradually whisk in 1 cup whole milk, 1 cup heavy cream and 1/2 cup low sodium beef broth until smooth. Simmer gently for 3 to 5 minutes until slightly thickened.
Remove sauce from heat and whisk in 8 ounces softened cream cheese until melted and smooth. Stir in 2 cups shredded sharp cheddar cheese and 1/2 cup grated Parmesan cheese until fully incorporated.
Combine cooked pasta, the beef and onion mixture, and the cheese sauce in a large bowl; toss until evenly coated. Taste and adjust seasoning if needed.
Transfer mixture to the prepared baking dish. If using, sprinkle 1/2 cup plain breadcrumbs evenly over the top and grate a little extra Parmesan if desired for color.
Bake in preheated oven for 20 to 25 minutes until sauce is bubbly and top is golden. For a deeper crust, broil 1 to 2 minutes while watching closely.
Let rest 5 minutes, garnish with 2 tablespoons chopped fresh parsley if desired, then serve hot.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.