HEAT oven to 325ºF.
PLACE 4 waffles in 8-inch square baking dish sprayed with cooking spray; top with bacon, 1/2 cup cheese and remaining waffles.
WHISK eggs, milk and syrup until blended; pour over waffles. Refrigerate 30 min.
BAKE 40 min. or until center is set and top is puffed and golden brown. Top with remaining cheese; bake 5 min. or until cheese is melted.