Crumble ground beef in a 2 quart casserole. Add onions; microwave on high for 4 to 6 minutes. Stir to break up meat. Drain. Stir in chili with BEANS, tomato sauce, tomato paste, chili powder and salt. Microwave on high for 6 to 8 minutes. Sprinkle 1 cup of corn chips in 8x8 inch baking dish. Spoon meat mixture over chips. Top with remaining corn chips. Sprinkle with cheese. Microwave on high for 1 to 2 minutes. Serve with lettuce and salsa. Randy Rigg