This spaghetti casserole is a comforting and hearty dish that's perfect for family dinners or gatherings. Combining the rich flavors of ground beef, marinara sauce, and gooey cheese, this recipe is sure to become a favorite. It's easy to prepare and bakes to perfection with a bubbly, cheesy top.
Most of the ingredients for this spaghetti casserole are common pantry staples. However, if you don't usually keep marinara sauce or shredded mozzarella cheese on hand, you may need to pick these up at the supermarket. Look for a good-quality marinara sauce to enhance the flavor of the dish.

Ingredients For Spaghetti Casserole Recipe
Spaghetti: A type of pasta that serves as the base for the casserole.
Ground beef: Adds a hearty and savory element to the dish.
Marinara sauce: A tomato-based sauce that brings rich flavor to the casserole.
Shredded mozzarella cheese: Melts beautifully on top, creating a gooey, cheesy layer.
Grated parmesan cheese: Adds a sharp, nutty flavor that complements the other ingredients.
Technique Tip for This Recipe
When browning the ground beef, ensure you break it up into small, even pieces using a wooden spoon or spatula. This allows for more even cooking and better integration with the marinara sauce. Additionally, for a richer flavor, consider adding a pinch of salt and pepper while the beef is browning.
Suggested Side Dishes
Alternative Ingredients
spaghetti - Substitute with zucchini noodles: For a low-carb option, zucchini noodles provide a similar texture and can be a healthier alternative.
spaghetti - Substitute with whole wheat pasta: This option adds more fiber and nutrients compared to regular spaghetti.
ground beef - Substitute with ground turkey: Ground turkey is a leaner meat and can reduce 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 pesto sauce: Pesto offers a different flavor profile and can add a fresh, herby taste to the casserole.
marinara sauce - Substitute with alfredo sauce: Alfredo sauce can create a creamier and richer casserole.
shredded mozzarella cheese - Substitute with cheddar cheese: Cheddar provides a sharper flavor and melts well in casseroles.
shredded mozzarella cheese - Substitute with vegan cheese: For a dairy-free option, vegan cheese can mimic the texture and meltability of mozzarella.
grated parmesan cheese - Substitute with pecorino romano: Pecorino Romano has a similar texture but offers a slightly saltier and tangier flavor.
grated parmesan cheese - Substitute with nutritional yeast: Nutritional yeast is a great vegan alternative that provides a cheesy flavor and additional nutrients.
Alternative Recipes Similar to This Casserole
How to Store or Freeze This Dish
- Allow the spaghetti casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
- Transfer the cooled casserole into an airtight container. If you prefer, you can also use a resealable plastic bag, pressing out as much air as possible.
- Label the container or bag with the date and contents. This ensures you know exactly what it is and when it was made.
- Store the container in the refrigerator if you plan to eat the casserole within 3-4 days. For longer storage, place it in the freezer.
- To freeze individual portions, divide the casserole into single-serving sizes and wrap each portion tightly in plastic wrap. Then place the wrapped portions into a resealable freezer bag or airtight container.
- When you're ready to enjoy the frozen casserole, thaw it in the refrigerator overnight. This slow thawing process helps maintain the texture and flavor.
- Reheat the thawed casserole in the oven at 350°F (175°C) for about 20-25 minutes, or until heated through. If reheating from frozen, it may take closer to 45 minutes. Cover the dish with foil to prevent the cheese from over-browning.
- For a quicker option, you can reheat individual portions in the microwave. Place the portion on a microwave-safe plate, cover with a microwave-safe lid or plastic wrap, and heat on medium power for 2-3 minutes, or until hot. Stir halfway through to ensure even heating.
- If you notice the casserole is drying out during reheating, add a splash of marinara sauce or a bit of water to keep it moist.
- Enjoy your reheated spaghetti casserole with a fresh side salad or garlic bread to complete the meal.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Transfer the leftover spaghetti casserole to an oven-safe dish.
- Cover the dish with aluminum foil to prevent the cheese from drying out.
- Bake for 20-25 minutes, or until heated through and the cheese is bubbly.
Microwave Method:
- Place a portion of the spaghetti casserole in a microwave-safe dish.
- Cover the dish with a microwave-safe lid or a damp paper towel to retain moisture.
- Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat in additional 30-second increments if necessary.
Stovetop Method:
- Add a small amount of olive oil or water to a large skillet.
- Heat the skillet over medium heat.
- Add the leftover spaghetti casserole to the skillet.
- Stir occasionally, breaking up any large chunks, until heated through, about 5-7 minutes.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the spaghetti casserole in an air fryer-safe dish.
- Cover the dish with aluminum foil.
- Heat for 10-15 minutes, checking halfway through to ensure it’s heating evenly.
Slow Cooker Method:
- Transfer the spaghetti casserole to the slow cooker.
- Set the slow cooker to low heat.
- Cover and heat for 1-2 hours, stirring occasionally to ensure even heating.
Best Tools for This Recipe
Oven: Used to bake the casserole at 350°F (175°C) until the cheese is melted and bubbly.
Large pot: Essential for cooking the ground beef and mixing it with the marinara sauce.
Colander: Necessary for draining the cooked spaghetti.
Baking dish: Used to transfer the spaghetti and beef mixture for baking.
Wooden spoon: Ideal for stirring the ground beef and marinara sauce mixture.
Measuring cups: Used to measure the shredded mozzarella and grated parmesan cheese.
Cheese grater: Handy if you need to grate the parmesan cheese yourself.
Knife: Useful for opening the packaging of the ground beef and other ingredients.
Cutting board: Provides a surface to cut and prepare ingredients.
Pot holders: Essential for safely handling the hot baking dish when removing it from the oven.
How to Save Time on This Recipe
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: Buy pre-shredded mozzarella and parmesan cheese to cut down on prep time.
One-pot method: Cook the spaghetti and ground beef in the same pot to minimize cleanup.
Batch cooking: Double the recipe and freeze half for a quick meal later.
Quick simmer: Use a store-bought marinara sauce to reduce cooking time.

Spaghetti Casserole Recipe
Ingredients
Main Ingredients
- 1 lb Spaghetti cooked and drained
- 1 lb Ground Beef
- 1 jar Marinara Sauce 24 oz
- 2 cups Mozzarella Cheese shredded
- 1 cup Parmesan Cheese grated
Instructions
- Preheat your oven to 350°F (175°C).
- Cook the spaghetti according to the package instructions, then drain.
- In a large pot, cook the ground beef over medium heat until browned. Drain any excess fat.
- Add the marinara sauce to the beef and simmer for 5 minutes.
- Mix the cooked spaghetti with the beef and marinara sauce mixture.
- Transfer the mixture to a baking dish. Top with shredded mozzarella and grated Parmesan cheese.
- Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly.
- Let it cool for a few minutes before serving. Enjoy!
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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