King Ranch Chicken Casserole

Ingredients

• 1 medium white onion, diced
• 1 orange bell pepper, diced
• 1 large green bell pepper, diced
• 3 tablespoon vegetable oil
• 2 cup cooked chicken, chopped
• 1 can cream of chicken soup
• 1 can cream of mushroom soup
• one 10-ounce can diced tomato and green chiles
• 1 teaspoon chili powder
• 2 teaspoon ground cumin
• 1/4 teaspoon salt
• 1/4 teaspoon garlic powder
• 1/4 teaspoon pepper
• twelve 6-inch corn tortillas
• 1 cup cheddar cheese
• 1 cup monterrey jack cheese