- Preheat grill and coat with non-stick spray.
- Put the beef in a medium bowl and add the chipotle puree, salt and pepper. Mix the seasonings with a fork.
- Form into 4 (1 inch thick) patties.
- Grill the patties for 3 minutes (medium-rare), 5 minutes (well-done)
- Serve each burger topped with avocado, toppings and buns.
