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Make Baked Spaghetti for the ultimate comfort food. Cooked spaghetti mixed with delicious sauce and baked to perfection for a delicious casserole recipe.

Baked Spaghetti is a classic recipe that we love to serve when we are feeding a crowd. My entire family loves spaghetti and layering in a casserole dish then topped with melting cheese makes it taste even better.
This dish is easy to prepare and a great way to stretch a pound of ground beef. If you love this casserole then you will love Chicken Spaghetti Casserole, Million Dollar Spaghetti Casserole, Mexican Spaghetti and Spaghetti Pie.
What's in this post: Baked Spaghetti
Why We Love Baked Spaghetti
We love making recipes that take very little effort after a long day and this is my go-to recipe. This Monday Night Dinner Idea recipe is ready in about 30 minutes and the ingredients are so simple. In fact, we usually have them on hand to meal a hearty and filling meal that everyone loves.
You can make this easy baked spaghetti recipe ahead of time and is also freezes great. Add your favorite side dishes for a complete meal.
Ingredients
- Spaghetti Noodles – Use any brand that you prefer
- Ground Beef – We like using lean ground beef
- Yellow Onion – Use a vegetable chopper to ensure that the onions are chopped evenly. You can even prepare ahead of time and freeze the onions.
- Garlic Minced – Learn How to Mince Garlic Cloves
- Marinara Sauce – Use jar sauce or make Easy Marinara Sauce
- Italian Seasoning – If you are out, see The Best Italian Seasoning Substitute
- Red Pepper Flakes – This is an additional spice but gives the sauce a kick of flavor
- Shredded Mozzarella Cheese and Grated Parmesan Cheese – Love the combination of the two but you can use what you prefer. You can even add in ricotta cheese
Scroll to the bottom for the full recipe in the recipe card.
Variations Ideas
- Change Meat – You can change the meat to ground turkey or add in Italian Sausage.
- Vegetables – This is a great recipe to sneak in veggies such as a handful of fresh spinach or chopped bell peppers.
- Cheese – Substitute or add in cheddar cheese or pepper jack cheese for even more flavor.
- Sauce – Feel free to use a can of crushed tomatoes and tomato sauce for a delicious combination that mixes well with the meat.
- Spices – For even more flavor you can substitute the Italian Seasoning with fresh herbs. Add in Fresh Basil Leaves, Fresh Rosemary and Fresh Thyme.
How to Make Baked Spaghetti
- Step 1 – Preheat the oven to 350 degrees F. Spray the baking dish with cooking spray to easily serve.
Step 2 – Cook the spaghetti noodles 2 minutes less than al dente based on the package instructions. Drain the pasta and place it in the bottom of a 9X13 baking dish.
Step 3 – Brown the ground beef with the diced onion in a large skillet over medium high heat with a wooden spoon. Break up the beef as it browns and cook until the beef is no longer pink. Drain off any excess grease.
Step 4 – Stir in the minced garlic and cook for 1 minute until aromatic.
Step 5 – Stir in the maraina sauce, Italian seasoning, kosher salt, pepper and red pepper flakes. Simmer for a few minutes until the sauce is heated through.
Step 6 – Pour the meat sauce on top of the noodles in the baking dish. Toss the beef mixture with the noodles until the noodles are coated with the beef and sauce. Smooth the mixture into an even layer.
Step 7 – Top with shredded mozzarella cheese and grated parmesan cheese. Bake uncovered for 15-20 minutes until the top of the casserole starts to brown.
- Step 8 – Remove the baked spaghetti casserole from the oven, let it rest for 5-10 minutes. Cut into squares, serve warm topped with the chopped parsley and enjoy!
Recipe Tips
- Shredded Cheese – Shred your own cheese instead of using pre-shredded so that it melts smoothly and for the best flavor in this recipe.
- Spaghetti – Cook spaghetti in a large pot of salted water al dente and according to package directions as the spaghetti will continue to cook while it bakes with the other ingredients.
- Baking Dish – This dish is made in a 9×13 baking dish but you can also prepare in two 8×8 baking dish and freeze one of them.
What to Serve With Baked Spaghetti?
Baked Spaghetti is a hearty dish so we like to serve with lighter Side Dishes. These are some of our favorites.
Frequently Asked Questions
This is a great casserole to prepare the day before. Prepare the baked spaghetti as the recipe indicates, then cover and store in the refrigerator. You may need to adjust cooking time to cook a few minutes to ensure that the center gets heated through.
Store leftover baked spaghetti in the refrigerator in an airtight container for up to 5 days.
You can freeze your leftovers or freeze unbaked spaghetti if you like to double the recipe. If you are planning to freeze the baked spaghetti I like to prepare in a disposable pan covered with plastic wrap and aluminum foil. Freeze for up to 3 months. If you are freezing it baked, just place in a freezer safe storage container and thaw in the fridge when ready to reheat.
If I have a small portion to reheat, I like to reheat in the microwave. But if you are reheating a larger portion, place in a casserole dish and reheat in the oven at 350 degrees for about 10 minutes.
More Easy Spaghetti Recipes
Easy Stove Top
Homemade Spaghetti Sauce Recipe
Best One Pot
Easy One Pot Spaghetti Recipe
Easy Slow Cooker
Easy CrockPot Chicken Spaghetti Recipe
We love to hear from you. If you make Baked Spaghetti Recipe, please leave us a comment or a star review.
Baked Spaghetti
Ingredients
- 1 pound Spaghetti Noodles
- 1 pound Lean Ground Beef
- ½ Yellow Onion diced
- 4 cloves Garlic Minced or 1 Tablespoon minced garlic
- 4 cups Marinara Sauce
- 1 teaspoon Italian Seasoning
- 1 teaspoon Salt
- ½ teaspoon Black Pepper
- ½ teaspoon Red Pepper Flakes optional
- 2 cups Shredded Mozzarella Cheese
- ½ cup Grated Parmesan Cheese
- Fresh Chopped Parsley optional
Instructions
- Preheat the oven to 350 degrees F.
- Cook the spaghetti noodles 2 minutes less than al dente based on the package instructions. Drain the pasta and place it in the bottom of a 9X13 baking dish.
- Brown the ground beef with the diced onion in a large skillet over medium high heat. Break up the beef as it browns and cook until the beef is no longer pink. Drain off any excess grease.
- Stir in the minced garlic and cook for 1 minute until aromatic.
- Stir in the maraina sauce, Italian seasoning, salt, pepper and red pepper flakes. Cook for a few minutes until the sauce is heated through.
- Pour the beef mixture on top of the noodles in the baking dish. Toss the beef mixture with the noodles until the noodles are coated with the beef and sauce.
- Smooth the mixture into an even layer.
- Top with shredded mozzarella cheese and grated parmesan cheese. Bake uncovered for 15-20 minutes until the top of the casserole starts to brown.
- Remove from the oven, let it rest for 5-10 minutes. Cut into squares, serve warm topped with the chopped parsley and enjoy!
My kids loved this
We love this recipe for an easy dinner option! And super yummy for leftovers as well!!
Easy meal to prep and so delicious! Great heated up for leftovers as well.
Five stars from the whole familyโthis recipeโs a keeper!
I’m so glad you loved it too!
Loved how easy and simple this recipe was. The fam Loved it!
My family loved it!
I tried this just to serve my kids something different from the usual spaghetti and they loved it! And I love how it took me just less than an hour to make it. ?
Me and the whole family loved this recipe!
Love this recipe for a busy night! Thanks!
I generally don’t like baked spaghetti because most of them are dry but not this one! Both of kids had seconds, they loved it so much!
Excellent as listed, but I added a little more spice for the added heat, but otherwise it is a good recipe.
Thank you Robert – I’m glad you enjoyed it!
My family loved this!! And there picky especially my husband !!
I’m so glad they enjoyed this recipe! Thank you for sharing and thank you for the positive review!
It was delicious and I put it together the day before and stuck it in the refrigerator then cooked it the next day! Worked out great!!!
Woohoo! I’m so glad you enjoyed it! Thank you so much for sharing and thank you for the positive review!
Love this easy dish. Everyone loved the taste.
Thank you so much Missy! I’m glad everyone enjoyed it.
can you use alfredo sauce instead of marinara
I haven’t tested that yet Donald, but I think it would work great and would be delicious. If you try it out, please let us know how it turns out!
This was the perfect meal to make for large family! Everyone loved it.