Sour Cream Chicken Enchilada Casserole

Ingredients

• 4 cups diced cooked chicken
• 1 can cream of chicken soup
• 8 oz. (1 cup) sour cream
• 2/3 cup milk
• 1 (4 oz.) can diced green chiles
• 2 Tbsp dried minced onion
• 1 tsp garlic powder
• pepper to taste
• 12 corn tortillas
• 2-3 cups shredded sharp cheddar cheese