Johnny Marzetti Casserole

Step 1
Preheat the oven to 350 degrees F (175 degrees C). Lightly grease a 7×11-inch casserole dish with cooking spray.

Step 2
Bring a large pot of lightly salted water to a boil. Add rotini and cook until tender yet firm to the bite, 6 to 8 minutes; drain. Run cold water over pasta to stop it from cooking further.

Step 3
While the pasta is cooking, cook ground beef and sausage in a large skillet over medium-high heat until completely browned and crumbly, 7 to 10 minutes. Add onion, celery, garlic, and bell pepper; cook and stir until vegetables are tender, about 5 minutes. Season with salt and pepper. Remove from the heat and stir in tomato sauce and diced tomatoes. Let cool for 5 minutes.

Step 4
Spread pasta over the bottom of the prepared baking dish. Sprinkle Italian cheese blend over rotini, then pour meat sauce over top. Cover the dish with heavy-duty aluminum foil.

Step 5
Bake in the preheated oven for 45 minutes. Remove the foil and sprinkle Cheddar cheese over the casserole. Continue to bake until Cheddar has melted, about 5 minutes. Rest for 10 minutes before serving.