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4.8 from 168 votes

Johnny Marzetti Casserole

This Johnny Marzetti Casserole is a classic Midwest dish that is the perfect comfort food! This ground beef casserole recipe can be made in the oven or the slow cooker.

Prep Time
25 mins
Cook Time
25 mins
Total Time
1 hr 20 mins
Servings: 8
Calories: 482 kcal
Course: Main Course
Cuisine: American

Ingredients

  • 2 cups dry rotini pasta
  • 1 pound ground beef
  • 1/2 pound ground mild Italian sausage
  • 3/4 cup diced onion
  • 1/2 pound white mushrooms washed and chopped
  • 1 tablespoon minced garlic 
  • 1 tablespoon Italian seasoning
  • one ounce can diced tomatoes
  • one ounce can tomato sauce
  • 1/2 teaspoon white sugar
  • 2 cups shredded Italian cheese blend
  • 1 1/2 cups shredded sharp cheddar cheese

Instructions

    Cup of Yum
  1. Preheat your oven to 350 °F. Grease or spray a 9x13 casserole dish.
  2. Cook the pasta according to the package directions to a firm al dente. Remember, you are cooking it further in the oven; you don't want mush. Drain and rinse the pasta under cold water to stop the cooking process and set aside.
  3. Fry the ground beef and Italian sausage in a large skillet until browned. Then drain out the grease, reserving a tablespoon or so in the pan, and place the cooked ground meat in a bowl.
  4. Mix the onion and mushrooms into the skillet grease and cook until soft. Add in the garlic, and sauté for 2-3 minutes.
  5. Stir in the Italian seasoning, diced tomatoes, tomato sauce, and white sugar. Simmer briefly, then stir in the ground meat. Remove from the heat and set aside.
  6. Spread a little bit of the meat sauce on the bottom of the prepared dish, then top with the pasta.
  7. Sprinkle the Italian blend cheese over the pasta, then pour the remaining sauce over top.
  8. Cover and cook in the oven for 45 minutes or until the casserole is bubbling. When ready, uncover, sprinkle the cheddar cheese on top, and cook again until the cheese is melted and bubbling on top.
  9. Remove from the oven and let sit for 5-10 minutes to set, then spoon onto plates to serve.
Slow Cooker
  1. Grease or spray the inside of the slow cooker.
  2. Cook the pasta according to the package directions to a firm al dente. Remember, you are cooking it even further in the oven or crockpot, you don't want mush.
  3. Cook the pasta according to the package directions to a firm al dente. Remember, you are cooking it even further in the oven; you don't want mush. Drain, rinse the pasta under cold water to stop the cooking process and set aside.
  4. Fry the ground beef and Italian sausage in a large skillet until browned. Then drain out the grease, reserving a tablespoon or so in the pan, and place the cooked ground meat in a bowl.
  5. Mix the onion and mushrooms into the skillet grease and cook until soft. Add in the garlic, and sauté for 2-3 minutes.
  6. Stir in the Italian seasoning, diced tomatoes, and tomato sauce. Simmer briefly, then stir in the ground meat. Remove from the heat and set aside.
  7. Spread a little bit of the meat sauce on the bottom of the dish, then top with the pasta.
  8. Cover and cook in the slow cooker on low for 1 1/2 - 2 hours, or the casserole is heated through completely. When ready, uncover, sprinkle the cheddar cheese on top and then cover again until melted.
  9. Use a spoon to serve portions on plates and enjoy.

Notes

  • If you have a slow cooker where "low' is super-hot, cut the time to 1 1/2 hours. The slow cooker method is great for when you don't want to use the oven but it's not an all-day recipe. As with almost all ground beef recipes that use the slow cooker, you have to cook the ground beef first.
  • Italian cheese blend is typically something like this (for those wondering)

Nutrition Information

Calories 482kcal (24%) Carbohydrates 15g (5%) Protein 28g (56%) Fat 33g (51%) Saturated Fat 15g (75%) Cholesterol 106mg (35%) Sodium 556mg (23%) Potassium 420mg (12%) Fiber 1g (4%) Sugar 2g (4%) Vitamin A 410IU (8%) Vitamin C 2.6mg (3%) Calcium 328mg (33%) Iron 2.3mg (13%)

Nutrition Facts

Serving: 8Serving

Amount Per Serving

Calories 482

% Daily Value*

Calories 482kcal 24%
Carbohydrates 15g 5%
Protein 28g 56%
Fat 33g 51%
Saturated Fat 15g 75%
Cholesterol 106mg 35%
Sodium 556mg 23%
Potassium 420mg 9%
Fiber 1g 4%
Sugar 2g 4%
Vitamin A 410IU 8%
Vitamin C 2.6mg 3%
Calcium 328mg 33%
Iron 2.3mg 13%

* Percent Daily Values are based on a 2,000 calorie diet.

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