You need a few simple ingredients to whip up this delicious Halloumi Burger. The best vegetarian burger I have ever tasted. Ingredients for Halloumi Burger: Halloumi – 200 grams Mayonnaise – 2 Tbsp Sweet Chilli Sauce – 1 Tbsp Tomato slices – 3 Lettuce – 2 Cheddar cheese slice – 1 Burger bun – 1…