Barbecue Beef on a Bun

1-2 lb. beef flank steak
1 med. onion, diced
2 cup fresh mushrooms, sliced
2 med. or 1 lg. tomato, chopped
1 cup barbecue sauce
1/4 c. honey
4 tsp Italian seasoning
2 sandwich buns, split

Place steak in slow cooker; top with onions, mushrooms and tomatoes. Combine barbecue sauce and Italian seasoning; pour over steak and vegetables. Cook on high for 5 hours or on low for 8-10 hours. Remove steak form slow cooker; shred with a fork. Return steak to slow cooker; stir gently to evenly coat with sauce. Top each bun half with steak mixture. Serve open faced. Makes 8 servings.