Sensational Steak Sandwich

Details

Ingredients

• 2 tablespoons olive oil
• 1 pound thinly sliced sirloin steak strips
• 8 ounces sliced fresh mushrooms
• 1 green bell pepper, seeded and cut into strips
• 1 medium onion, sliced
• 10 slices provolone cheese
• 1 loaf French bread
• 1 (14 ounce) can beef broth
• ½ teaspoon salt
• ½ teaspoon ground black pepper
• ½ teaspoon garlic powder
• 2 tablespoons Worcestershire sauce
• ⅛ teaspoon red pepper flakes
• ¼ cup Pinot Noir or other dry red wine
• ½ cup prepared horseradish
• ½ cup brown mustard