In medium bowl, combine all ingredients except mayonnaise, buns and lettuce; mix well. Shape into 4 (1/2-inch-thick) patties. Place patties on broiler pan.
Broil 4 to 6 inches from heat for 8 to 10 minutes or until thermometer inserted in center of patties reads 165°F.
Spread mayonnaise on cut sides of buns. Place lettuce, turkey burgers and tomato on bottom halves of buns. Cover with top halves of buns.