Easy Baked Spaghetti

Ingredients

• 454 guncooked spaghetti
• 454 glean ground beef
• ½ mediumonion, chopped
• ½ teaspoondried oregano or Italian seasoning
• ½ teaspoon, optionalcrushed red pepper flakes
• 4 clovesgarlic, minced
• 950 mlmarinara sauce
• to tastesalt and pepper
• 15 ml, if neededolive oil
• 113 gshredded mozzarella
• 113 gshredded cheddar
• 90 gfreshly grated Parmesan cheese
• to taste, optionalfresh parsley, chopped

Instructions

1. 1

   Heat the oven

   Preheat the oven to 190°C (375°F) and position the rack in the top third.

2. 2

   Cook the spaghetti

   Bring a pot of salted water to the boil and cook the spaghetti for 2 minutes less than the packet directs. Drain it and transfer it to a 23 × 33 cm (9 × 13-inch) baking dish.

3. 3

   Brown the beef

   Meanwhile, put the beef, onion, oregano and red pepper flakes in a frying pan. The beef should release enough fat to cook the onion; if it is particularly lean, add 15 ml (1 tablespoon) olive oil. Cook over a medium-high heat, stirring occasionally, until browned and cooked through, about 10 minutes. Spoon off most of the excess fat if there is a lot.

4. 4

   Add the sauce

   Stir the garlic into the pan and cook for about 1 minute. Add the marinara sauce and cook for a few more minutes, until warmed through; season with salt and pepper.

5. 5

   Combine the pasta

   Pour the beef mixture over the spaghetti and toss until the pasta is coated. Spread it into an even layer.

6. 6

   Bake and serve

   Scatter the mozzarella, cheddar and Parmesan over the top. Bake uncovered for 20 minutes, then grill for a few minutes to brown the cheese if you like, watching it carefully. Leave to stand for 5–10 minutes, then cut into squares with a spatula and garnish with chopped parsley if wanted.

What is baked spaghetti?

Baked spaghetti is an American-style casserole that turns cooked pasta and a meat-and-tomato sauce into a sliceable, oven-finished meal. It draws on familiar Italian-American flavours rather than one single traditional regional preparation.

This version layers mozzarella, cheddar and Parmesan over beefy marinara. The brief bake melts the cheeses and gives the top a chance to brown.

Nutrition and macros by portion

The nutrition label shows one serving as written: 476 calories, 33g protein, 51g carbs, 15g fat.

The spaghetti and marinara supply most of the carbohydrates, while the beef provides much of the protein. Cheese and beef contribute much of the fat; serve a portion with salad or vegetables for a fresh, fibre-rich contrast.

The pasta and sauce

Pasta: Cook the spaghetti for 2 minutes less than the packet recommends. It will continue cooking in the oven, where it absorbs some of the sauce.

Marinara: Warm the sauce with the browned beef and aromatics before combining it with the pasta. That helps distribute the flavour through the casserole.

Browning the beef

Beef: Break up the mince as it cooks so it browns evenly and mixes readily with the sauce. If a noticeable pool of fat remains, spoon most of it away before adding the garlic.

Aromatics: The garlic only needs about a minute in the pan before the sauce goes in. This cooks it briefly without letting it burn.

Getting the texture right

Even layer: Toss the pasta thoroughly with the beef mixture, then smooth it out in the dish. This helps the sauce and cheese cover the casserole consistently.

Cheese top: Bake uncovered so the topping can melt rather than steam. A short spell under the grill adds more colour, but keep an eye on it because the cheese can brown quickly.

Timing and doneness

Before baking: The spaghetti should be slightly firmer than you would serve straight from the pan, since it gets another 20 minutes in the oven.

After baking: The cheese should be melted and the casserole hot throughout. Let it stand for 5–10 minutes so it is easier to portion into squares.

What to serve with it

A crisp green salad or simply dressed leaves provide a fresh contrast to the rich pasta and cheese. Steamed or roasted vegetables also make an easy side.

The casserole is filling on its own, so serve modest sides if you want to keep the meal balanced without making it feel sparse.

Recipe notes & tips

• Salt the pasta water before adding the spaghetti.
• Use a large enough dish to spread the pasta mixture into an even layer.
• Grate the Parmesan fresh for a fine topping that distributes evenly.
• If the beef is very lean, add the optional olive oil to help cook the onion.
• Watch the casserole closely if you use the grill to brown the cheese.
• Rest the baked spaghetti for 5–10 minutes before cutting it.

Variations

• Add vegetables: Stir cooked mushrooms or peppers into the beef and sauce mixture.
• Use Italian seasoning: Choose it in place of the dried oregano for a broader herb flavour.
• Adjust the heat: Leave out the red pepper flakes for a milder casserole.
• Change the cheese: Use more mozzarella or cheddar while keeping the total topping amount similar.
• Add fresh herbs: Scatter chopped parsley over the finished portions.

Common mistakes to avoid

• Cooking the pasta fully: It may turn too soft in the oven; drain it 2 minutes before the packet timing.
• Leaving excess beef fat: The casserole can become greasy; spoon off most of the fat if there is a lot.
• Burning the garlic: It can turn bitter; cook it for about 1 minute before adding the sauce.
• Uneven mixing: Plain patches can remain; toss until the spaghetti is coated before baking.
• Walking away while grilling: The cheese can brown quickly; watch it carefully.
• Cutting straight away: The squares may fall apart; let the dish stand for 5–10 minutes first.

How to store

Refrigerate leftovers in a covered container for up to 3 days. Reheat portions until hot throughout in the oven or microwave; add a small splash of water or sauce if the pasta seems dry.

Frequently asked questions