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PREHEAT grill to medium heat. Shape meat into four patties. Grill 5 to 6 min. on each side or until medium doneness (160°F).
MEANWHILE, place pineapple slices and buns, cut-sides down, on grill. Grill pineapple 1 to 2 min. on each side or until heated through and buns 1 to 2 min. or until lightly toasted.
PLACE 1/3 cup of the salad greens on bottom half of each bun; top with 2 tomato slices, 1 burger, 1-1/2 Tbsp. cheese and 1 pineapple slice. Cover with top halves of buns.