Spray a spring form, round cake pan or casserole with cooking spray Brown ground beef ,and onion and drain Add taco seasonings and cook according to package direction Lay 1 tortilla in bottom of baking dish and spread 1/3 of bean on it ,top with 1/3 of the meat and sprinkle on some cheese . 2nd layer tortilla, 1/2 the rice, 1/2 salsa, 1/2 the corn and cheese 3rd layer tortilla, 1/3 beans ,1/3meat, cheese 4 layer tortilla . beans ,meat, corn, rice, salsa and cheese Bake covered with foil at 350 for about 40 minutes uncover and bake 10-15 minutes longer. let sit 5 minutes before cutting . After baking top with sour cream,diced onion and shredded lettuce if desired