Sensational Steak Sandwich

Ingredients (16)

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