Slow Cooker French Dip Sandwich

Ingredients (22)

• For The Beef:
• 3 to 4 lb beef round roast
• 1 tbsp minced garlic
• 1 tbsp fresh rosemary
• 1 tbsp fresh thyme
• 1 tsp kosher salt
• 1/2 tsp ground black pepper
• 2 to 3 14.5 oz cans Swanson's low-sodium beef broth
• 1 tsp Worcestershire sauce
• 10 whole peppercorns
• 1 bay leaf
• 1/2 large onion
• For the Caramelized Onions (makes about 1 cup):
• 1/2 tablespoon extra-virgin olive oil
• 3 large onions
• 1/2 tsp Kosher salt
• For the Peppers (makes about 2 cups):
• 1 large red bell pepper
• 1 large green bell pepper
• For the Sandwich:
• 
Sargento Reduced Fat Provolone or Mozzarella Slices
• whole wheat baguettes or rolls