Chicken Gyros (Slow Cooker or Instant Pot)

Ingredients

• 1 ½ pound boneless, skinless chicken breasts
• 3 cloves garlic (minced)
• ⅓ cup fresh lemon juice
• 1 onion (diced)
• ¼ cup water (only for slow cooker prepation)
• 1 Tablespoon olive oil
• 2 Tablespoons red wine vinegar
• 1 teaspoon oregano
• ¼ teaspoon allspice
• 1 teaspoon lemon pepper
• 1 cup chicken broth (only for Instant Pot preparation)
• 1 cup cucumber (grated)
• 16 ounces fat free plain Greek yogurt
• 2 cloves garlic (minced)
• 1 teaspoon red wine vinegar
• ½ teaspoon lemon juice
• ¼ teaspoon dried dill weed
• salt, to taste
• 1 cucumber (sliced)
• 1 cup lettuce (shredded)
• 2 Roma tomatoes (diced)
• 6 pita breads