El Dorado Beef Casserole

El Dorado Beef Casserole 1 pound ground beef 1 onion, chopped 2 (8-ounce) cans tomato sauce 1 cup water 1 teaspoon chili powder 1/2 teaspoon garlic powder 1/2 teaspoon salt 1/4 teaspoon black pepper 1 (9-ounce) package tortilla chips, coarsely crushed 1 cup sour cream 1 cup (4 ounces) shredded Colby Jack cheese Preheat oven to 375 degrees F. Coat a 1-1/2-quart casserole dish with cooking spray. In a large skillet over medium-high heat, brown ground beef and onion 5 minutes. Add tomato sauce, water, chili powder. garlic powder, salt, and pepper; mix well. Reduce heat to medium-low and simmer 2 to 3 minutes, or until thickened. Spread half the beef mixture in casserole dish then top with half the crushed tortilla chips, half the sour cream, and half the cheese. Repeat layers one more time, ending with cheese. Bake 25 to 30 minutes, or until bubbly and top is golden.