Hearty Fiesta Casserole

Ingredients

• 1 teaspoon ground black pepper
• 15 ounces pinto beans, rinsed and drained
• 2 teaspoons ground cumin
• 2 pounds ground beef
• 1 tablespoon garlic powder
• 1 small onion, chopped
• 1 teaspoon salt
• 1 teaspoon dried oregano
• 12 corn tortillas
• 20 ounces red enchilada sauce
• 4 cups shredded Colby Jack cheese
• 4.5 ounces chopped green chiles
• 2 tablespoons chili powder