Ingredients:

• 1 (3-pound) chuck roast, rinsed and dried
• 2 medium onions, chopped
• 1 tablespoon extra virgin olive oil
• 1 (28-ounce) can whole tomatoes (preferably plum tomatoes)
• 1 (18-ounce) bottle of your favorite barbecue sauce (or 2 1/4 cups of your favorite homemade barbecue sauce)
• Salt and freshly ground black pepper
• 12 sandwich or hamburger buns