This recipe creates a classic, hearty Johnny Marzetti casserole. It combines rotini pasta with a rich ground beef and Italian sausage sauce, seasoned vegetables, tomato sauce, and diced tomatoes, all layered and baked with a generous blend of Italian and Cheddar cheeses until bubbly.
Ensure ground meat and sausage are well browned before adding vegetables; this builds essential flavor. Cook the pasta al dente, as it will continue cooking in the oven. Don't over-sauce the pasta before baking to prevent it from becoming mushy. Covering the casserole loosely with foil for the first part of baking helps ensure it heats through evenly before uncovering to brown the cheese. For added depth, a pinch of dried oregano or a bay leaf can be simmered with the sauce.