Enchilada Squares

Enchilada Squares 1 pound ground beef 1/4 cup chopped onion 4 eggs 1 8-ounce can tomato sauce 1 5-1/2-ounce can evaporated milk (2/3 cup) 1 1-1/2-ounce envelope enchilada sauce mix 1/2 cup sliced pitted ripe olives 2 cups corn chips 1 cup shredded Cheddar cheese (4 ounces) In skillet cook beef and onions till meat is brown and onion is tender. Drain off fat. Spread meat mixture in a 10x6x2-inch baking dish. Beat together eggs, tomato sauce, evaporated milk, and enchilada sauce mix; pour over meat. Sprinkle with olives; top with chips. Bake, uncovered, at 350 degrees till set in center, 20 to 25 minutes. Sprinkle with cheese. Bake till cheese melts, 3 to 5 minutes.