These are the subway salads that are free as long as you have no dressing or cheese: Ham Salad, Beef Salad, Turkey Breast Salad, Veggie Delite Salad, Chicken Tikka Salad, Chicken Breast Salad, Chicken Teriyaki Salad, Turkey Breast & Ham Salad.
Honey Mustard and Sweet Onion Dressing are the lowest syn values at 1.5 per serving. But ranch & BBQ are not much different at 2 syns. I'd definitely recommend sweet onion, it's lovely! I usually have it with Chicken Teriyaki! Hope that helps - Subway, KFC Pulled Chicken Rice Box or Spud-u-like are usually my go to take out/fast food options but Subway is definitely my favourite & packed fully of tasty speed foods x