Preheat the grill to medium-high heat.

In a large bowl, combine ground turkey with minced red onion, green onion, peppers, egg whites, Essence, cumin and Worcestershire sauce. Divide the turkey into 12 equal portions and, using your hands, shape into 12 small burgers about 3 1/2-inches wide.

Place the burgers on the grill and cook until turkey is done and a thermometer inserted into the center registers 165 degrees F, about 3 minutes per side.

Serve the burgers with cheese on the mini buns with lettuce, tomato, thinly sliced red onions and avocado, garnished with mayonnaise, mustard, and ketchup to your liking.