Heat closed contact grill 5 minutes. In 1-quart saucepan, mix chili sauce, Worcestershire sauce, thyme and red pepper. Heat to boiling. Reduce heat; simmer, stirring occasionally, while cooking patties.
Place frozen protein patties on bottom grill surface. Close grill; cook 2 minutes. Sprinkle garlic-pepper blend over patties; cook 2 to 4 minutes longer or until golden brown. Serve patties on lettuce with warm sauce; Sprinkle with chives.