Mexican Lettuce Wraps

Ingredients

• 3 cups cubed cooked chicken breast
• 1 can (15 ounces) black beans, rinsed and drained
• 1 medium tomato, seeded and finely chopped
• 1 can (4 ounces) chopped green chiles
• 1/2 cup salsa
• 1/4 cup finely chopped onion
• 1/4 cup finely chopped sweet red pepper
• 1 tablespoon lime juice
• 1/2 teaspoon ground cumin
• 1/2 teaspoon seasoned salt
• 1/4 teaspoon garlic powder
• 1 medium ripe avocado, peeled and finely chopped
• 1/2 cup reduced-fat sour cream
• 12 Bibb or Boston lettuce leaves