Cheesy Baked Spaghetti

This quick and easy Cheesy Baked Spaghetti is packed with Italian flavors and creamy melted cheese. This is my go-to dinner for an activity-packed weeknight and can even be assembled the night before!

At Ajpal, I add lots of tips in all of my recipes – because I am a home cook without any formal training, and I find I am more confident making dishes when I understand why it works, and what each ingredient means to the flavor of a recipe. My goal is for even the most beginner home cook to feel empowered in the kitchen.

How to Make Cheesy Baked Spaghetti

This baked spaghetti is super easy and can be made your own – feel free to add sauteed mushrooms, peppers, onions, or Italian sausage!

Spaghetti Bake Ingredients

To make this recipe, you’ll need:

• Spaghetti – spaghetti is my go to pasta since it is very filling and classic for a spaghetti bake. When you strain the spaghetti, rinse it immediately with cold water to stop the cooking process and if you want you can coat it in some olive oil to keep the strands of pasta from sticking together.
• Pasta Sauce – you can use any brand or flavor of pasta sauce but make sure you use pre-made sauce, not diced tomatoes since tomato sauce has been cooked and enhanced in ways plain diced tomato or tomato puree has not.
• Garlic Powder – garlic powder is my go to for a quick hit of the sweetness and intense flavor of garlic without all the peeling and mincing. You can substitute fresh finely diced or pressed garlic for a stronger flavor.
• Onion – baked onion has a natural sweetness and savory nature that will enhance the flavor of the sauce for this bake. Make sure you dice your onion well so that it distributes into the sauce evenly.
• Parsley – parsley has a clean peppery flavor that lifts this spaghetti bake and gives it a fresh hit. I use dried parsley for this recipe but you can use fresh if it’s available.
• Oregano – oregano has a very pungent spicy taste with sweet and sour notes. I use it here to enhance the pasta sauce and give the bake a distinctly Italian flavor.
• Parmesan Cheese – parmesan is a hard cow cheese that has been aged at least 12 months and has a strong salty flavor. The more expensive parmesan cheeses have been aged longer and have a stronger flavor, use whichever brand and type you prefer. You can use grated or shredded parmesan.
• Mozzarella Cheese – mozzarella is also a cow cheese but is very soft and has a very mild refreshing taste. I use it here because it is high in fat so it melts very well for the top of our spaghetti bake.

Cheesy Spaghetti Bake Steps

Once you’ve gathered your ingredients, we will use the following method:

Mix Sauce

Mix the spices, onion, and Parmesan cheese into the pasta sauce.

Toss Pasta

In an 8×8 inch baking dish coat the spaghetti in the pasta sauce.

Bake

Sprinkle the mozzarella cheese over the top and bake at 350 degrees for 35-40 minutes, the cheese should be bubbly and melted.

Serve & Enjoy!

Sprinkle some dried parsley on top to garnish and enjoy!

Tips and Tricks to Perfect Baked Spaghetti:

Prepare it ahead of time. You can prep this dish ahead of time and store it in the fridge for up to 1 day before baking.

Add some meat. For some extra protein, you can add 1 lb of cooked unseasoned ground beef or ground turkey to this dish or 1 lb of meatballs. When I use meat, I add it to the sauce with the spices so the spaghetti gets coated in it. 
Top with other fresh herbs. I am partial to parsley, but this baked spaghetti also tastes great topped with fresh basil or thyme. Feel free to use fresh herbs in and on this bake if possible for a stronger flavor.

Undercook the spaghetti by 1–2 minutes so it doesn’t turn mushy during baking; the pasta will finish cooking in the sauce.

Toss the hot pasta with a little butter or olive oil to prevent sticking and help the sauce coat evenly.

Mix cheese into the pasta and add more on top for the best texture—creamy inside, bubbly and golden outside.

Use a blend of cheeses (mozzarella for melt, cheddar for sharpness, parmesan for depth) to make the dish more flavorful.

Season the sauce generously—baked pasta dilutes seasoning, so bump up the salt, garlic, Italian seasoning, and pepper.

Add a splash of pasta water to the sauce to help it cling to the pasta and stay smooth instead of drying out.

Layer the pasta like a lasagna (sauce ? pasta ? cheese ? repeat) for a more indulgent, structured bake.

Cover with foil for the first half of baking to keep moisture in, then uncover to brown the cheese.

Let the baked spaghetti rest 10 minutes before serving so it slices cleanly and holds together.

Use ground beef, Italian sausage, or a mix for a richer meat sauce. Brown the meat deeply for extra flavor.

Sauté onions and garlic before adding the sauce to deepen the overall flavor.

Add a spoonful of ricotta or cream cheese to the sauce for a creamy, ultra-cheesy version.

Sprinkle parmesan on top of the mozzarella—it browns better and gives the top an irresistible crust.

Use crushed tomatoes + tomato paste to thicken thin jarred marinara if the sauce feels watery.

Stir in chopped fresh basil or parsley after cooking for brightness that cuts through the richness.

Make it ahead—assemble the casserole, refrigerate overnight, and bake the next day (add 10 minutes baking time).

Add red pepper flakes for a little heat.

Bake in a cast-iron skillet for crispy edges and beautiful presentation.

Cheesy Baked Spaghetti FAQs

Yes, if you are going to freeze it just assemble it as instructed above then double cover it in foil and freeze for 3-6 months. Be sure to write the date, “Baked Spaghetti” and instructions for defrost and reheat on the tin foil with a sharpie. I recommend you let it defrost before reheating then bake as instructed. The texture of the noodles will be affected by freezing but it will still taste great.

After this dish has been baked, you can store it in an airtight container in the fridge for up to 3 days.

What to Serve With Baked Spaghetti?

To see some of our favorite easy recent side dishes, see the following:

Easy Homemade Meatballs

Easy Garlic Bread

Homemade French Onion Soup

Pan Fried Asparagus

Check out our other favorite Main Dishes by clicking here!

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