All ingredients are readily available at Tesco, Sainsbury’s, Waitrose, ASDA, and Morrisons. Chicken breasts are located in the fresh meat section, and Greek yogurt, cucumber, fresh dill, and lemons can be found in the dairy and produce sections. Fresh oregano is available in the herb section, while olive oil and garlic are in the pantry aisle. Skewers can be found in the kitchenware or barbecue section.