Halloumi cheese from Greek sheep’s milk from Cyprus. Unlike most cheeses, halloumi is meant to be cooked before eating. Once grilled, the halloumi cooks up with a crispy exterior and a warm & soft interior, making it a great option for a vegetarian burger. Cool and refreshing, tzatziki combines wonderfully with the hot, crisp halloumi. Some lettuce, tomato & pickled red onions are the ideal produce companions for these Greek-style burgers.