Zesty Italian Beef Sandwiches

Ingredients (12)

• 1 boneless beef chuck roast (3 to 4 pounds)
• 1 can (10-1/2 ounces) condensed French onion soup, undiluted
• 1/2 cup cider vinegar
• 2 tablespoons reduced-sodium soy sauce
• 1 tablespoon brown sugar
• 1/2 cup mayonnaise
• 1 tablespoon horseradish mustard or spicy brown mustard
• 1 tablespoon chili garlic sauce
• 6 Italian rolls, split
• 6 thin slices red onion
• 18 sweet pickle slices
• 6 slices smoked provolone cheese