In a saucepan, cook onion and celery in butter till tender
but not brown, about 10 minutes. Stir in chili, refried
beans, corn, taco sauce and salt. Arrange half the tortilla
pieces in 13x9x2-inch baking dish; top with half the chili
mixture. Repeat layers. Bake, covered, at 350 degrees for 45
to 50 minutes. Sprinkle cheese on top. Bake, uncovered, 2 to
3 minutes more or until cheese is melted. Garnish with whole
chile peppers if desired. Makes 8 servings.