Mexican Enchilada Casserole
["3 lb. ground chuck", "1 to 2 pkg. corn tortillas (2 pkg. works better)", "1 to 2 medium onions, chopped", "salt and pepper to taste", "1 tsp. chili powder", "2 (10 oz.) cans enchilada sauce", "1 (4 oz.) can green chilies (optional)", "1 (17 oz.) can tomato sauce", "1 (15 oz.) can whole kernel corn, drained", "1 1/2 to 2 lb. grated cheese"]
["Brown ground chuck in large skillet, drain off excess fat. Add onions and seasonings.", "Add tomato sauce, enchilada sauce and green chilies.", "Cook slowly until meat is done.", "Grease large baking dish (9 x 13-inches)."]
["ground chuck", "corn tortillas", "onions", "salt", "chili powder", "enchilada sauce", "green chilies", "tomato sauce", "whole kernel corn", "grated cheese"]