This layered Mexican casserole is a great hearty dish for your whole family to enjoy.
In small bowl mix Cheddar cheese and a handful of Monterey Jack cheese for the top. Mix the rest of the Monterey Jack cheese and the onions in a bowl. Mix beans and meat.
Mix tomatoes and soup in a small bowl. Line a 13X9" pan with tortillas. Layer the meat and cheese and onions then finish with corn tortillas. Spread soup and tomatoes and top with cheeses. Cover with foil and bake at 375 degrees for 45 minutes. Let stand about 5 minutes before serving.