In a medium mixing bowl, use your hands to mix together the pickle, shallot, cheese, tomato, ketchup, and mustard. Form the mixture into small 2 inch patties. Place patties on a baking sheet lined with parchment paper. Season the tops of the burgers with salt and pepper.

Heat the grill for a few minutes over medium/high heat. Gently place the burgers on the grill and close the lid. Grill burgers for 7-10 minutes for medium to medium well. Note: If the burgers are flipped they may start to crumble along the edges.

Serve burgers on buns. Store burgers in the refrigerator for three to five days wrapped in tin foil. Reheat in oven or microwave.