• 2 pounds ground beef
• 1 onion, chopped
• 2 teaspoons minced garlic
• 1 (2 ounce) can black olives, sliced
• 1 (4 ounce) can diced green chili peppers
• 1 (10 ounce) can diced tomatoes with green chile peppers
• 1 (16 ounce) jar taco sauce
• 2 (16 ounce) cans refried beans
• 12 (8 inch) flour tortillas
• 9 ounces shredded Colby cheese