Challas for Cutlet & Biryani (Challas or Onion Salad is popular in Kerala cuisine. Best with veg or non veg  cutlets and as a side dish with biryanis. Indian Coffee House in  Kerala serves this type of onion salad with cutlets. A very easy salad preparation with minimum ingredients. Here’s the recipe !!!) Here's the recipe of Baked Vegetable Cutlets Here's