Leftover Spaghetti Casserole

Transform your leftover spaghetti into a comforting and crowd-pleasing dish with this Leftover Spaghetti Casserole. This easy-to-make recipe combines tender noodles coated in marinara sauce, creamy layers of ricotta, and a gooey topping of melted mozzarella for a lasagna-inspired bake that's perfect for weeknight dinners or meal prep. Add cooked ground beef or Italian sausage for an extra burst of savory flavor, while fragrant garlic powder and Italian seasoning elevate every bite. Ready in just 45 minutes, this casserole comes together in a single baking dish, making cleanup a breeze. Serve it with a side salad or garlic bread for a complete and satisfying meal. Whether you're repurposing pasta from the night before or batch-prepping for busy days, this comforting casserole is sure to become a family favorite.

Nutriscore Rating: 68/100

Prep Time:15 mins

Cook Time:30 mins

Total Time:45 mins

Servings: 6

Ingredients

• 4 cups Cooked spaghetti
• 2 cups Marinara sauce
• 2 cups Shredded mozzarella cheese
• 0.5 cups Grated Parmesan cheese
• 1 cup Cooked ground beef or Italian sausage (optional)
• 1 cup Ricotta cheese
• 1 large Egg
• 0.5 teaspoons Garlic powder
• 1 teaspoons Dried Italian seasoning
• 0.5 teaspoons Salt
• 0.25 teaspoons Black pepper
• 1 tablespoon Olive oil or cooking spray

Directions

Step 1

Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish with olive oil or cooking spray and set aside.

Step 2

In a large mixing bowl, combine the cooked spaghetti with the marinara sauce and mix well to coat all the noodles.

Step 3

In a separate bowl, mix together the ricotta cheese, grated Parmesan cheese, egg, garlic powder, dried Italian seasoning, salt, and black pepper until smooth.

Step 4

If using cooked ground beef or Italian sausage, stir it into the spaghetti and sauce mixture for added protein and flavor.

Step 5

Layer half of the spaghetti mixture into the prepared baking dish, spreading it out evenly.

Step 6

Spread the ricotta mixture evenly over the spaghetti layer, using a spatula to smooth it out.

Step 7

Add the remaining spaghetti mixture as a second layer over the ricotta mixture.

Step 8

Top the casserole with the shredded mozzarella cheese in an even layer.

Step 9

Cover the baking dish with aluminum foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10 minutes or until the cheese is melted and bubbly.

Step 10

Remove the casserole from the oven and let it sit for 5-10 minutes to set before serving. Garnish with extra Parmesan or fresh herbs if desired.

Nutrition Facts

Serving size	(1863.4g)

Amount per serving	% Daily Value*
Calories	3087.1

Total Fat 156.5g	0%
Saturated Fat 72.6g	0%
Polyunsaturated Fat 2.0g
Cholesterol 782.0mg	0%
Sodium 4562.6mg	0%
Total Carbohydrate 213.8g	0%
Dietary Fiber 14.5g	0%
Total Sugars 13.5g
Protein 204.6g	0%

Vitamin D 53.8IU	0%
Calcium 3210.9mg	0%
Iron 18.1mg	0%
Potassium 1164.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 45.7%

Protein: 26.6%

Carbs: 27.7%