1. Make the relish: Combine all of the relish ingredients in a small bowl and mix until well combined. Set aside.
2. Preheat grill to high.
3. Prepare the burgers: Combine everything except for the meat in a medium bowl until well mixed. Add the meat and mix by hand until the ingredients are evenly distributed. Form into four ½-inch-thick patties and set aside.
4. Heat the grill to medium-high. Gently place the burgers on the grill and close the cover. Grill for about 5 minutes on each side; burgers are done when they reach an internal temperature of 160º F.
5. Serve the burgers on buns or lettuce leaves, topped with the relish.
Want to Make it Vegetarian?
For the burger use 2 packages of Beyond Meat Burgers!