johnny marzetti casserole

12 Pinches 1 Photo
Ofallon, MO
Updated on Jan 6, 2026

Johnny Marzetti Casserole features ground beef, sausage, mushrooms, onions, and bell peppers, in tomato sauce, all smothered with cheddar and mozzarella cheese. This is a hearty casserole that the whole family loves. This quick and easy casserole is ready for the oven in less than 20 minutes.

prep time 25 Min
cook time 20 Min
method Bake
yield 8 serving(s)

Ingredients

  • 12 ounces rotini pasta
  • 1 pound ground beef
  • 1/2 pound ground Italian sausage
  • 8 ounces cremini mushrooms, sliced
  • 1 medium yellow onion, sliced
  • 1 medium red bell pepper, diced
  • 4 cloves garlic, minced
  • 1 teaspoon dried thyme
  • 1/2 teaspoon dried marjoram
  • 1 can tomato sauce (15 oz)
  • 1 can diced tomatoes (15 oz)
  • 2 cups shredded sharp cheddar cheese
  • 1 1/2 cups shredded Italian blend cheese

How To Make johnny marzetti casserole

  • Step 1
    Preheat the oven to 350 degrees F. Grease a 9×13-inch baking dish.
  • Step 2
    Bring a large pot of salted water to a boil. Cook the pasta al dente according to package instructions. Drain well.
  • Step 3
    Meanwhile, brown the ground beef and Italian sausage in a large skillet over medium heat.
  • Step 4
    About halfway through the browning process, add the mushrooms, onions, and bell peppers. Cook until the meat and mushrooms are browned, and the onion is soft.
  • Step 5
    Reduce the heat to low and stir in the garlic, thyme, and marjoram, cooking for 1 minute. Stir in the tomato sauce and diced tomatoes.
  • Step 6
    Combine the meat mixture with the pasta in the prepared baking dish. Top with the cheddar and Italian cheese blend.
  • Step 7
    Bake for 20 minutes or until the cheese melts and the casserole warms.

Discover More

Ingredient: Pasta
Method: Bake
Culture: American
Category: Casseroles

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