Combine all the ingredients in a large bowl and mix with your hands until everything is just combined.
Free form four burger patties and cook on a medium-high grill for 4 minutes on each side (for a medium burger).
Serve each burger on a some butter lettuce (I like using 3-4 pieces for a sturdy burger bun) and top with Black Bean Corn + Avocado Salad (or with any toppings you prefer). Enjoy!