What You Need1/2 lb. sliced fresh mushrooms1 small onion, thinly sliced1/2 cup A.1. Thick & Hearty Steak Sauce, divided1 lb. lean ground beef4 KRAFT DELI DELUXE Process Bacon Cheddar Cheese Slices4 sesame seed sandwich rolls, partially split
HEAT grill to medium heat.
PLACE vegetables on center of large sheet heavy-duty foil; drizzle with 1/4 cup sauce. Seal packet, leaving room for heat to circulate. Mix meat and remaining sauce; shape into 4 (1/2-inch-thick) patties.
GRILL packet 5 min. Add patties; grill 8 to 10 min. or until vegetables are crisp-tender and burgers are done (160ºF), turning patties after 5 min. and adding cheese for the last minute.
FILL rolls with burgers and vegetables.