Black Bean Burgers with Mango Salsa

INGREDIENTS

• 2 (15-ounce) cans black beans, rinsed and drained
• 3/4 cup finely chopped fresh cilantro, divided
• 3/4 cup (3 ounces) shredded Monterey Jack cheese
• 1/4 cup panko (Japanese breadcrumbs)
• 2 teaspoons ground cumin
• 1 teaspoon dried oregano
• 1/2 teaspoon sea salt
• 1/2 medium jalapeño pepper, finely chopped
• 2 large egg whites
• Cooking spray
• 1 1/4 cups chopped peeled mango (about 1 medium)
• 3 tablespoons chopped shallots
• 1 1/2 tablespoons fresh lime juice
• 1 avocado, peeled and chopped
• 1 garlic clove, minced
• 6 (2-ounce) whole-wheat hamburger buns, lightly toasted
• 6 green leaf lettuce leaves