Lamb kebab burger - Good Food Middle East

Ingredients

• 2 tbsp fat-free yogurt
• 1 tbsp mayonnaise
• 1 small garlic clove, grated
• ½ tbsp vegetable oil
• 2 lamb burgers
• 2 sesame seed burger buns
• 1 tomato, sliced
• 20g gherkins, sliced
• 1 red chilli, finely sliced
• leaves of 1 Baby Gem lettuce