Mexican Fiesta
["2 lb. ground beef", "1 small onion, chopped", "1/3 c. taco seasoning", "1 c. water", "1 (16 oz.) can whole kernel corn, drained", "1 can Mexican tomato sauce", "1 can cream of mushroom soup", "3 c. corn chips, crushed to 1 1/2 c.", "1 tsp. salt", "1/2 tsp. pepper", "1/2 tsp. garlic powder", "1 1/2 c. grated Cheddar cheese, divided", "1 c. sour cream"]
["Brown ground beef in a skillet, stirring to crumble; drain well.", "In a large bowl, combine ground beef and all remaining ingredients, except 1/2 cup cheese and sour cream.", "Pour into a greased 9 1/2 x 15-inch casserole dish.", "Bake, uncovered, at 350\u00b0 for 30 minutes.", "Spread sour cream over top; sprinkle with remaining cheese.", "Bake 5 minutes longer."]
["ground beef", "onion", "taco seasoning", "water", "whole kernel corn", "tomato sauce", "cream of mushroom soup", "corn chips", "salt", "pepper", "garlic powder", "Cheddar cheese", "sour cream"]