Barbecue Beef Sandwiches
["1 large Reynolds oven bag (14 x 20-inch)", "1 Tbsp. flour", "1 c. barbecue sauce", "2 tsp. chili powder", "1 medium onion, thinly sliced", "1 lb. sirloin steak, cut into strips", "4 sandwich rolls"]
["Preheat oven to 350\u00b0.", "Shake flour in oven bag and place in large baking pan.", "Add barbecue sauce and chili powder and squeeze bag to blend.", "Add onion and beef; turn bag to coat.", "Tie off bag and bake for 45 minutes.", "Divide mixture evenly onto rolls."]
["flour", "barbecue sauce", "chili powder", "onion", "sirloin steak", "sandwich rolls"]