Slow-Cooker French Onion Shredded Beef Sandwiches Recipe - BettyCrocker.com

Ingredients

• 2 to 3 lb beef boneless chuck roast
• 1 tablespoon Montreal steak seasoning
• 1 1/2 teaspoons salt
• 1 tablespoon vegetable oil
• 2 tablespoons butter, melted
• 2 tablespoons Muir Glen™ organic tomato paste
• 1 tablespoon Dijon mustard
• 1/4 cup packed brown sugar
• 2 cups thinly sliced yellow onion
• 6 cloves garlic, finely chopped
• 2 tablespoons cornstarch
• 2 tablespoons sherry vinegar
• 12 burger buns, split
• 2 cups shredded Swiss cheese (8 oz)
• 1/4 cup chopped fresh Italian (flat-leaf) parsley leaves