Beef Shawarma ? Recipe

Ingredients

• 2 lbs lean sirloin
• 1/4 cup olive oil
• 1/4 cup vinegar
• 2 Tbsp Shawarma seasoning
• 4 garlic cloves
• 1 onion
• Juice of two lemons plus zest
• 1/2 cup Tahini paste, for Tahini Sauce
• Juice of 2 lemons, for Tahini Sauce
• 2 garlic cloves, for Tahini Sauce
• ¼ cup water, for Tahini Sauce
• ¼ tsp salt, for Tahini Sauce
• 6 Large pita breads, for Assembling
• tomatoes, for Assembling
• Red onion, for Assembling
• Flat leaf parsley, for Assembling