Southwestern Bean Soup

Ingredients

• 1/4 cup butter
• 1 onion, chopped
• 1 bell pepper, seeded and chopped
• 2 teaspoons minced garlic
• 2 (15 ounce) cans Mexican stewed tomatoes
• 1 (15 ounce) can pinto beans, drained
• 1 (15 ounce) can kidney beans, rinsed and drained
• 1 (15 ounce) can black beans, rinsed and drained
• 1 tablespoon chili powder
• 1/4 teaspoon ground coriander
• 1 cup shredded Mexican 4-cheese blend
• 1 cup shredded Monterey Jack, divided