This baked spaghetti takes everything you love about traditional spaghetti and turns it into a cheesy, scoopable casserole. The edges get a little crisp, the middle stays saucy, and every bite is full of flavor. It’s simple, family dinner that comes together with pantry staples.
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A Family Favorite from Grandma’s Recipe Box
Unlike regular spaghetti, this version bakes into a cozy casserole that holds together beautifully. It solves the problem of juggling noodles and sauce at the table since everything is already mixed, melted, and ready to serve. Each scoop has just the right balance of tender pasta, savory beef, and melted cheese.
I found this baked spaghetti recipe tucked inside my grandma’s old recipe box, with a few smudges of sauce on the card. It immediately caught my attention because my kids love spaghetti, and I’m always looking for ways to make it feel a little different without adding extra work. This one turned out to be exactly that kind of recipe.
I like to serve it with a green salad or a slice of garlic bread, though it’s filling enough to stand on its own. If you’ve ever tried my leftover spaghetti pie recipe, this one has that same comforting feel. And it has the fresh flavor like my homemade spaghetti sauce.
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Key Ingredients and Substitutions
- Spaghetti noodles: The base of the dish and what gives it that classic spaghetti feel. Cook them just to al dente so they hold up nicely while baking.
- Ground beef: Adds hearty flavor and makes the casserole filling. You can swap in ground turkey or Italian sausage if you’d like a different taste.
- Onion: Brings a mild sweetness and depth to the sauce. I like to dice it finely so it blends right in.
- Green pepper: Adds color and a bit of crunch to the mix. Red or yellow peppers work too if that’s what you have.
- Pasta sauce: The main sauce that ties everything together. Use your favorite jarred brand or homemade sauce if you have some on hand.
- Diced tomatoes: Give the sauce extra texture and a fresh tomato flavor. You can use crushed tomatoes for a smoother sauce.
- Oregano: Adds that familiar Italian flavor that makes the sauce taste homemade. Dried oregano works great here.
- Salt: Brings out all the flavors in the sauce and cheese. Taste as you go so it’s seasoned just right.
- Garlic powder: Adds a gentle garlic flavor without the extra chopping. Fresh minced garlic works too if you prefer.
- Cheddar cheese: Melts into the noodles and creates that gooey, cheesy top layer. A cheddar-mozzarella blend is a nice option if you want extra stretch.
- Water: Helps loosen the sauce just enough to coat the noodles evenly before baking. You only need a splash to get the right consistency.
How to Make Baked Spaghetti
Preparation
Preheat the oven to 350°F and lightly grease a 9×13-inch baking dish. Dice the onion and green pepper, and set them aside. Measure out all remaining ingredients so they’re ready to use once you start cooking.
Step 1 – Cook the Spaghetti
Bring a large pot of salted water to a boil. Add the spaghetti noodles and cook according to the package directions until al dente. Drain the noodles well and set them aside while you prepare the sauce.
Step 2 – Brown the Ground Beef
In a medium stockpot over medium heat, cook the ground beef until fully browned, breaking it apart with a spoon as it cooks. This should take about 6 to 8 minutes. Drain any excess grease and transfer the beef to a bowl.
Step 3 – Cook the Vegetables
In the same pot, add the diced onion and green pepper. Cook over medium heat for about 5 minutes, stirring occasionally, until the onion is soft and translucent. This step builds flavor for the sauce.
Step 4 – Make the Sauce
Return the cooked ground beef to the pot with the vegetables. Add the pasta sauce, diced tomatoes, oregano, salt, garlic powder, and water. Stir well to combine, then bring the mixture to a gentle simmer. Let it cook for about 10 minutes to blend the flavors.
Step 5 – Combine the Casserole
In a large bowl or the same pot, mix the cooked spaghetti with the meat sauce. Add 2 cups of the shredded cheddar cheese and stir until everything is evenly coated and the cheese starts to melt into the sauce.
Step 6 – Assemble and Bake
Pour the spaghetti mixture into the prepared baking dish, spreading it out evenly. Sprinkle the remaining 1 cup of cheddar cheese over the top. Bake for 20 minutes, or until the cheese is melted and bubbly around the edges.
Step 7 – Serve Warm
Remove the baked spaghetti from the oven and let it rest for about 5 minutes before serving. This helps the casserole set and makes it easier to scoop. Serve warm and enjoy.
Lynette’s Tip
Cook the spaghetti just to al dente. The noodles will continue to soften as the casserole bakes, so slightly firm pasta helps keep the texture just right.
More Noodle Casserole Recipes You’ll Enjoy
Baked Spaghetti
Equipment
- 9×13 Baking Pan
Ingredients
- 16 oz spaghetti noodles
- 1 lb ground beef
- 1 Cup chopped onion diced
- 1 Cup green pepper diced
- 24 oz pasta sauce
- 14 oz diced tomatoes
- 2 teaspoon oregano
- 1 teaspoon salt
- 1 teaspoon garlic powder
- 3 Cups cheddar cheese
- ¼ Cup water
Instructions
- Prepare the Oven and Pan: Preheat the oven to 350°F and lightly grease a 9×13-inch baking dish.
- Cook the Spaghetti: Bring a large pot of water to a boil and cook the spaghetti according to al dente package directions. Drain and set aside.
- Brown the Ground Beef: In a medium stockpot, cook the ground beef over medium heat until fully browned. Drain excess grease and set the beef aside.
- Cook the Vegetables and Sauce: In the same pot, cook the diced onion and green pepper until the onion is soft and translucent. Add the cooked ground beef back to the pot along with the pasta sauce, diced tomatoes, oregano, salt, and garlic powder. Stir well, bring to a simmer, and cook for 10 minutes.
- Combine the Casserole: In a large bowl or the pasta pot, stir together the cooked spaghetti, meat sauce, and 2 cups of the shredded cheddar cheese until evenly combined.
- Assemble and Bake: Pour the mixture into the prepared baking dish. Sprinkle the remaining cheese evenly over the top and bake for 20 minutes, or until the cheese is melted and bubbly.
- Serve Warm: Let the casserole rest for a few minutes, then serve warm and enjoy.
Notes
Variations
- Use Different Meat: Try ground turkey or Italian sausage instead of beef for a lighter or more seasoned flavor. Both work well with the sauce and cheese.
- Add More Vegetables: Stir in sliced mushrooms or olives, or spinach for extra stretch and melt. It’s an easy way to sneak in more veggies.
- Change the Cheese: Use mozzarella or a cheddar-mozzarella blend for a stretchier, melty top. Parmesan sprinkled before baking adds a nice salty finish.
Nutrition
Recipe FAQs
Yes, you can use other pasta shapes like penne, rotini, or linguine if that’s what you have. Just be sure to cook it to al dente so it holds up well during baking.
The pasta continues to cook in the oven, so starting with slightly firm noodles keeps the casserole from becoming too soft. It helps the texture stay just right after baking.
Absolutely. If you prefer a more saucy casserole, add an extra half cup of pasta sauce before baking. It will make the dish a bit creamier and easier to scoop.
Let the baked spaghetti rest for about 5 minutes after removing it from the oven. This helps the layers set and makes it easier to serve.
If the top starts to brown too quickly, cover the dish loosely with foil during the last few minutes of baking. This keeps the cheese melted and soft without overbrowning.
