Best Baked Spaghetti Recipe | Cheesy Meat Sauce Casserole Dinner

If you love cozy pasta dinners that feed a crowd and reheat like a dream, you’ll fall hard for this baked spaghetti. Tender noodles, hearty meat sauce, and layers of gooey cheese melt into one craveable casserole that tastes even better the next day.

I make this when I want comfort without fuss. You’ll brown some meat, simmer a simple sauce, toss with spaghetti, then add a creamy layer and cheese on top. Slide it in the oven until bubbly, and dinner is done. It’s weeknight-friendly, potluck-ready, and guaranteed to make your kitchen smell amazing.

Why This Baked Spaghetti Casserole Delivers Big Flavor

• Balanced texture: Al dente spaghetti holds up under baking, while a creamy ricotta layer keeps each bite luscious.
• Hearty meat sauce: A quick stovetop simmer builds depth with garlic, onion, and Italian spices.
• Melted, golden cheese: A blend of mozzarella and Parmesan gives stretch, saltiness, and a gorgeous browned top.
• Make-ahead friendly: Assemble it earlier in the day and bake when you’re ready to eat.
• Feeds a crowd: This casserole easily serves 8, and leftovers reheat beautifully.

Ingredients

For the Meat Sauce

• 1 pound ground beef (or half beef, half Italian sausage for extra flavor)
• 1 small onion, finely chopped
• 3 garlic cloves, minced
• 1 (24–26 oz) jar marinara sauce or 3 cups homemade tomato sauce
• 2 tablespoons tomato paste for richness
• 1 teaspoon dried Italian seasoning
• 1/2 teaspoon crushed red pepper flakes (optional, for gentle heat)
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper

For the Pasta and Cheeses

• 12 ounces spaghetti (about 3/4 of a standard box)
• 1 cup ricotta cheese (whole milk gives the best texture)
• 1 large egg (helps set the creamy layer)
• 1/2 cup grated Parmesan cheese, divided
• 2 cups shredded mozzarella
• 2 tablespoons butter (to coat hot noodles)
• Fresh parsley or basil for garnish

Pantry & Tools

• 9×13-inch baking dish
• Large pot for boiling pasta
• Large skillet for sauce
• Foil for covering during baking

How to Make Cheesy Baked Spaghetti

1. Preheat and prep: Heat oven to 375°F. Lightly grease a 9×13-inch baking dish.
2. Boil the spaghetti: Bring a large pot of salted water to a boil. Cook spaghetti until just shy of al dente (about 1 minute less than package directions). Drain well, then toss hot noodles with butter and 1/4 cup Parmesan. Set aside.
3. Brown the meat: In a large skillet over medium-high heat, cook ground beef until browned, breaking it up as it cooks, 6–8 minutes. Drain excess fat if needed.
4. Build the sauce: Add onion and cook until softened, 3–4 minutes. Stir in garlic for 30 seconds. Add marinara, tomato paste, Italian seasoning, red pepper flakes, salt, and black pepper. Simmer 8–10 minutes to thicken and deepen the flavor. Taste and adjust seasoning.
5. Mix the creamy layer: In a bowl, stir together ricotta, egg, and 1/4 cup Parmesan with a pinch of salt and pepper until smooth.
6. Combine pasta and sauce: Add about 2/3 of the meat sauce to the spaghetti and toss until evenly coated. Keep the remaining sauce for layering.
7. Layer the casserole:
   • Spread a thin layer of reserved meat sauce in the baking dish.
   • Add half the spaghetti mixture.
   • Dollop and gently spread all the ricotta mixture over the pasta.
   • Top with 1 cup mozzarella.
   • Add the remaining spaghetti and the rest of the meat sauce.
   • Finish with remaining mozzarella and a sprinkle of Parmesan.
8. Bake it: Cover loosely with foil (tent it so cheese doesn’t stick) and bake 20 minutes. Uncover and bake 10–15 minutes more, until bubbly with golden spots.
9. Rest and serve: Let it rest 10 minutes so the layers set. Sprinkle with chopped parsley or basil. Slice and serve.

How to Store Leftover Baked Spaghetti

• Refrigerate: Cool completely, then cover tightly. Store up to 4 days.
• Freeze: Wrap the whole casserole or portion into airtight containers for up to 3 months. Label with date.
• Reheat:
  • Oven: 350°F, covered, 20–30 minutes (add a splash of water if dry).
  • Microwave: 60–90 seconds per portion, stirring halfway for even heat.
  • From frozen: Thaw overnight in the fridge, then reheat as above.

Benefits of Making Baked Spaghetti at Home

• Budget-friendly comfort: Pantry staples become a filling, restaurant-worthy meal.
• Customizable layers: Adjust spice, cheese, and meat to match your taste.
• Kid-approved flavors: Familiar spaghetti with a fun, cheesy twist.
• Great for meal prep: Bake once, enjoy all week.
• Travel-ready: Easy to bring to friends, new parents, or potlucks.

Common Mistakes to Avoid

• Overcooking the pasta: Stop at just shy of al dente. The oven finishes the job.
• Watery sauce: Let the sauce simmer until it clings to the spoon. Thin sauce leads to soggy slices.
• Skipping the rest: Rest 10 minutes before slicing so layers hold together.
• Not seasoning enough: Taste your sauce and ricotta mixture. Salt brings every flavor forward.
• Cheese burn: Tent with foil for the first bake so the top doesn’t over-brown.

Tasty Variations to Try

• Meat lovers: Use half beef, half hot Italian sausage, or add diced pepperoni.
• Veggie boost: Stir in sautéed mushrooms, spinach, or bell peppers to the sauce.
• Three-cheese blend: Mix mozzarella with provolone and fontina for extra melt.
• Spicy arrabbiata: Swap marinara for spicy sauce and add extra red pepper flakes.
• Herb-forward: Fold fresh basil and parsley into the ricotta layer.
• Gluten-free: Use your favorite gluten-free spaghetti and check labels on sauces.
• Lighter option: Sub ground turkey and part-skim ricotta; add extra herbs for punch.

FAQ

Can I assemble it ahead?

Yes. Assemble up to 24 hours in advance, cover well, and refrigerate. Add 10–15 minutes to the bake time if cold.

What pasta shape works best?

Spaghetti gives classic strands, but you can use bucatini, thin spaghetti, or short pasta like penne if that’s what you have.

Do I need the egg in the ricotta?

The egg helps the layer set, but you can skip it. If you omit, expect a softer, creamier middle.

How do I prevent dry baked spaghetti?

Use enough sauce and pull the pasta slightly underdone. Cover for part of the bake and don’t skip the rest time.

Can I make it dairy-free?

Yes. Use dairy-free ricotta and mozzarella alternatives and a vegan Parmesan-style topping.

Conclusion

Baked spaghetti brings everything you love about red-sauce pasta—savory meat, tender noodles, and melty cheese—into one comforting pan. With smart seasoning, a quick-simmered sauce, and a creamy middle, you’ll get slices that hold together and taste amazing. Make it for Sunday dinner, stash leftovers for lunch, and keep this reliable, crowd-pleasing recipe in your regular rotation.

Cheesy Baked Spaghetti Casserole

A cozy baked spaghetti with hearty meat sauce, a creamy ricotta layer, and gooey melted cheeses that feeds a crowd and reheats beautifully.

Print Recipe
Pin Recipe

Prep Time

25 minutes

Cook Time

40 minutes

Total Time

1.1 hours

Servings

8 servings

Ingredients

• 1 pound ground beef (or half beef, half Italian sausage)
• 1 small onion, finely chopped
• 3 garlic cloves, minced
• 1 (24–26 oz) jar marinara sauce or 3 cups homemade tomato sauce
• 2 tablespoons tomato paste
• 1 teaspoon dried Italian seasoning
• ½ teaspoon crushed red pepper flakes (optional)
• 1 teaspoon kosher salt, plus more to taste
• ½ teaspoon black pepper
• 12 ounces spaghetti
• 1 cup ricotta cheese (whole milk preferred)
• 1 large egg
• ½ cup grated Parmesan cheese, divided
• 2 cups shredded mozzarella
• 2 tablespoons butter
• Fresh parsley or basil, for garnish
• 9×13-inch baking dish (tool)
• Foil (for covering during baking)

Instructions

1. Preheat oven to 375°F and lightly grease a 9×13-inch baking dish.
2. Bring a large pot of salted water to a boil. Cook spaghetti until just shy of al dente (about 1 minute less than package directions). Drain, then toss hot noodles with butter and ¼ cup Parmesan; set aside.
3. In a large skillet over medium-high heat, brown the ground beef (6–8 minutes), breaking it up. Drain excess fat if needed.
4. Add onion and cook until softened, 3–4 minutes. Stir in garlic for 30 seconds.
5. Add marinara, tomato paste, Italian seasoning, red pepper flakes (if using), salt, and black pepper. Simmer 8–10 minutes, then adjust seasoning to taste.
6. In a bowl, mix ricotta, egg, and ¼ cup Parmesan with a pinch of salt and pepper until smooth.
7. Combine about two-thirds of the meat sauce with the spaghetti and toss to coat.
8. Layer the casserole: spread a thin layer of reserved sauce in the baking dish; add half the spaghetti; dollop and gently spread all the ricotta mixture; top with 1 cup mozzarella; add remaining spaghetti and remaining sauce; finish with remaining mozzarella and a sprinkle of Parmesan.
9. Cover loosely with foil (tent to prevent sticking) and bake 20 minutes. Uncover and bake 10–15 minutes more until bubbly with golden spots.
10. Rest 10 minutes. Garnish with chopped parsley or basil, slice, and serve.