Add the mint, black olives, red onion and bread crumbs to a food processor. Pulse until well blended. In a large bowl, combine the olive mixture with the meat. Using your hands, mold the meat mixture into 6 burger patties and place on a hot, oiled grill. Grill the burgers for about 7 minutes per side for medium-rare.
Toast the buns on the grill and build the burgers on a toasted bun with a little Cucumber Chile Salad. if desired. Serve.
Chile Cucumber Salad:
Add shallots, cucumber, garlic, ginger and chiles to a bowl and follow with rice vinegar. Toss to coat and season with salt and pepper, to taste.