Put the beetroot into a blender and add the olive oil, salt, garlic and chilli. Blend to a smooth paste. Put half of the sauce into a small zip-lock freezer bag, seal and freeze – now you have ...

This juicy beetroot burger is topped with hummus and ... garam masala or harissa are all great. These burgers freeze brilliantly. Place them on a baking tray lined with greaseproof paper and ...