Crockpot Lamb Shank - Verde Vineyards

Ingredients

• 1 sweet onion (sliced, separated into rings)
• 4 lamb shanks (rinsed, patted dry)
• 1 teaspoon Worcestershire sauce
• 1 teaspoon kosher salt
• Dash of black pepper (freshly ground)
• 1 teaspoon olive oil
• 10 garlic cloves (whole ones cut in half, peeled)
• 8 ounces mushrooms (brushed clean, cut in half)
• 1/2 cup red wine
• 1/2 cup beef broth
• 1 (14-ounce) can tomatoes (diced)
• 1 teaspoon oregano (dried)
• 1 teaspoon basil (dried)
• 4 sprigs thyme (fresh)
• 1 teaspoon allspice (ground)
• 1 small bay leaf (broken in half)