Grilled Chicken Wraps

chicken thighs (boneless, skinless) 3/4 lbs 340 g

Salt and freshly ground black pepper 1 1

onion slices (1/4-inch, about 1/2 cup) 2 slice 2 slice

barbeque sauce (low-sugar, low-sodium) 1/4 cups 1/4 cups

whole wheat flour tortillas (8-inch) 2 2

lettuce (shredded) 1/2 cups 1/2 cups

fresh tomatoes (diced) 1/2 cups 1/2 cups