This spaghetti casserole is a comforting and hearty dish that combines the flavors of marinara sauce, ground beef, and melted cheese. It's perfect for a family dinner or a potluck, offering a delicious twist on traditional spaghetti.
Most of the ingredients for this recipe are common pantry staples, but you might need to pick up a jar of marinara sauce and some shredded mozzarella cheese if you don't already have them. These can be found in the pasta sauce and dairy sections of your supermarket, respectively.

Ingredients For Spaghetti Casserole Recipe
Spaghetti: A type of pasta made from durum wheat and water, commonly used in Italian cuisine.
Ground beef: Finely chopped beef, often used in sauces and casseroles for its rich flavor.
Marinara sauce: A tomato-based sauce flavored with garlic, onions, and herbs, typically used in Italian dishes.
Shredded mozzarella cheese: A mild, creamy cheese that melts well, perfect for topping casseroles.
Grated parmesan cheese: A hard, aged cheese with a sharp, nutty flavor, often used as a topping.
Garlic powder: A seasoning made from dried and ground garlic, used to add a subtle garlic flavor.
Onion powder: A seasoning made from dried and ground onions, used to add a mild onion flavor.
Dried oregano: A dried herb with a slightly bitter, aromatic flavor, commonly used in Italian cooking.
Salt: A mineral used to enhance the flavor of food.
Pepper: A spice made from ground peppercorns, used to add heat and flavor.
Technique Tip for This Recipe
When cooking the ground beef, make sure to break it up into small pieces as it browns to ensure even cooking and a better texture in the final dish. Additionally, for a richer flavor, consider adding a splash of red wine to the marinara sauce while it simmers with the spices. This will enhance the depth of the sauce and complement the cheeses used in the casserole.
Suggested Side Dishes
Alternative Ingredients
spaghetti - Substitute with zucchini noodles: For a low-carb option, zucchini noodles provide a similar texture and absorb flavors well.
spaghetti - Substitute with whole wheat pasta: For a healthier alternative, whole wheat pasta offers more fiber and nutrients.
ground beef - Substitute with ground turkey: Ground turkey is a leaner option and reduces the overall fat content of the dish.
ground beef - Substitute with lentils: For a vegetarian option, lentils provide a similar texture and are high in protein.
marinara sauce - Substitute with crushed tomatoes with Italian seasoning: Crushed tomatoes with added Italian seasoning can mimic the flavor of marinara sauce.
marinara sauce - Substitute with pesto sauce: For a different flavor profile, pesto sauce adds a rich, herby taste.
shredded mozzarella cheese - Substitute with shredded cheddar cheese: Cheddar cheese provides a stronger flavor and melts well.
shredded mozzarella cheese - Substitute with vegan mozzarella: For a dairy-free option, vegan mozzarella melts similarly and offers a comparable taste.
grated parmesan cheese - Substitute with grated pecorino romano: Pecorino romano has a similar texture and a slightly saltier, sharper flavor.
grated parmesan cheese - Substitute with nutritional yeast: For a vegan option, nutritional yeast provides a cheesy flavor and is rich in B vitamins.
garlic powder - Substitute with fresh minced garlic: Fresh minced garlic offers a more robust and aromatic flavor.
garlic powder - Substitute with shallot powder: Shallot powder provides a milder, sweeter garlic-like flavor.
onion powder - Substitute with fresh minced onion: Fresh minced onion gives a stronger, more aromatic flavor.
onion powder - Substitute with scallion powder: Scallion powder offers a milder, slightly sweeter onion flavor.
dried oregano - Substitute with dried basil: Dried basil provides a different but complementary herbal note.
dried oregano - Substitute with Italian seasoning: Italian seasoning includes oregano and other herbs, adding a more complex flavor.
salt - Substitute with soy sauce: Soy sauce adds umami and saltiness, enhancing the overall flavor.
pepper - Substitute with cayenne pepper: Cayenne pepper adds heat and a different type of spiciness.
Other Alternative Recipes Similar to This Casserole
How to Store or Freeze This Casserole
Allow the spaghetti casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
Transfer the cooled casserole to an airtight container. If you prefer, you can also use a baking dish with a tight-fitting lid.
For added freshness, place a layer of plastic wrap directly on the surface of the casserole before sealing the container. This minimizes air exposure.
Store the container in the refrigerator if you plan to enjoy the spaghetti casserole within 3-4 days.
If you want to keep the casserole for a longer period, consider freezing it. Wrap the entire baking dish tightly with aluminum foil, ensuring there are no gaps.
For individual servings, portion out the casserole into smaller, freezer-safe containers. This makes reheating more convenient.
Label the containers with the date and contents to keep track of storage time.
When ready to reheat, thaw the casserole in the refrigerator overnight if frozen.
Preheat your oven to 350°F (175°C) and bake the thawed spaghetti casserole for 20-25 minutes, or until heated through. If reheating from frozen, you may need to bake for an additional 10-15 minutes.
For a quicker option, reheat individual portions in the microwave. Place the casserole in a microwave-safe dish, cover with a microwave-safe lid or plastic wrap, and heat on medium power for 2-3 minutes, stirring halfway through.
To maintain the cheesy goodness, sprinkle a bit of extra mozzarella or parmesan cheese on top before reheating. This will give it a freshly baked feel.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Transfer the leftover spaghetti casserole to an oven-safe dish if it's not already in one.
- Cover the dish with aluminum foil to prevent the cheese from drying out.
- Bake for about 20-25 minutes, or until the casserole is heated through and the cheese is bubbly again.
- Remove the foil for the last 5 minutes if you want the top to be slightly crispy.
Microwave Method:
- Place a portion of the spaghetti casserole in a microwave-safe dish.
- Add a splash of water or marinara sauce to keep it moist.
- Cover the dish with a microwave-safe lid or plastic wrap, leaving a small vent.
- Heat on medium power for 2-3 minutes, then stir.
- Continue heating in 1-minute intervals until the casserole is heated through.
Stovetop Method:
- Place a non-stick skillet over medium heat.
- Add a small amount of olive oil or butter to the skillet.
- Add the leftover spaghetti casserole to the skillet.
- Stir occasionally to ensure even heating, adding a splash of water or marinara sauce if it seems dry.
- Heat until the casserole is warmed through, about 5-7 minutes.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place a portion of the spaghetti casserole in an air fryer-safe dish.
- Cover the dish with aluminum foil to prevent the cheese from burning.
- Heat for about 10-15 minutes, checking halfway through to ensure even heating.
- Remove the foil for the last 3-5 minutes if you want a crispy top.
Best Tools for This Recipe
Oven: Used to bake the casserole at a consistent temperature of 350°F (175°C).
Large pot: Used to cook the ground beef and combine it with the marinara sauce and seasonings.
Colander: Used to drain the cooked spaghetti after boiling.
Mixing bowl: Used to combine the cooked spaghetti with the sauce and beef mixture.
Baking dish: Used to transfer the spaghetti mixture for baking.
Wooden spoon: Used to stir and combine ingredients in the pot and mixing bowl.
Measuring spoons: Used to measure out the garlic powder, onion powder, and dried oregano.
Cheese grater: Used to grate the parmesan cheese if it is not pre-grated.
Knife: Used to open the packaging of the ground beef and other ingredients.
Cutting board: Used as a surface to place ingredients while preparing them.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
Serving spoon: Used to serve the casserole once it has cooled slightly.
How to Save Time on Making This Casserole
Pre-cook the beef: Cook the ground beef in advance and store it in the fridge. This will save you time when assembling the casserole.
Use pre-shredded cheese: Opt for pre-shredded mozzarella and parmesan to cut down on prep time.
Batch cook spaghetti: Cook extra spaghetti and store it for future meals. This way, you can quickly assemble the dish.
One-pot method: Use a single pot to cook the spaghetti and beef mixture, reducing the number of dishes to clean.
Freeze portions: Make a double batch and freeze half. This gives you a ready-made meal for another day.
Spaghetti Casserole Recipe
Ingredients
Main Ingredients
- 1 lb Spaghetti
- 1 lb Ground Beef
- 1 jar Marinara Sauce (24 oz)
- 2 cups Shredded Mozzarella Cheese
- 1 cup Grated Parmesan Cheese
- 1 teaspoon Garlic Powder
- 1 teaspoon Onion Powder
- 1 teaspoon Dried Oregano
- to taste Salt and Pepper
Instructions
- Preheat your oven to 350°F (175°C).
- Cook the spaghetti according to the package instructions. Drain and set aside.
- In a large pot, cook the ground beef over medium heat until browned. Drain any excess fat.
- Add the marinara sauce, garlic powder, onion powder, dried oregano, salt, and pepper to the pot with the ground beef. Stir to combine.
- In a large mixing bowl, combine the cooked spaghetti with the sauce and beef mixture. Mix well.
- Transfer the spaghetti mixture to a baking dish. Top with shredded mozzarella and grated Parmesan cheese.
- Bake in the preheated oven for 25-30 minutes, or until the cheese is melted and bubbly.
- Let the casserole cool for a few minutes before serving. Enjoy!
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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