2C.SHREDDED SHARP CHEDDAR CHEESE,1(15-OZ.) CAN ENCHILADA SAUCE,1(15-OZ.)CAN OF CHILI (WITH OR WITHOUT BEANS) 1SMALL CAN TOMATO PASTE, 1/2C.WATER,2 TBLSP. ONION, 1 (6-OZ.)PKG. CORN CHIPS,1C.SOUR CREAM, DIVIDE CHEESE AND CORN CHIPS.MINCE ONION FINELY.COMBINE 1 AND 1/2C.OF THE CHEESE,CHILI,TOMATO PASTE,ENCHILADA SAUCE,WATER ONION AND CORN CHIPS.RESERVE 1C. OF THE CORN CHIPS FOR TOP.POUR INTO A LIGHTLY GREASED OBLONG BAKING DISH.BAKE,UNCOVERED AT 375 FOR 30 MINUTES.SPREAD SOUR CREAM OVER MIXTURE AND SPRINKLE WITH REMAINDER OF CHEESE.PLACE REMAINING CORN CHIPS AROUND EDGE OF CASSEROLE.BAKE 5 MINUTES.