Loaded beetroot burgers with halloumi and sweet potato salad

By Donal Skehan From Saturday Kitchen Ingredients For the beetroot burger 3 tbsp olive oil 1 red onion, finely chopped 2 garlic cloves, crushed 2 raw beetroots, peeled and grated 1 courgette, grated 2 large carrots, peeled and grated 100g/3½oz porridge oats 400g tin chickpeas, drained …