Finely chop or grate winter raw vegtables.
Parsnips (yes raw, grated, very nice)
Swede (Rutabaga to you Yanks)
Add a little ground cumin. Stir it up with mayonaise and there you have it.
You also could add some chopped Beetroot (Red Beet)
Tucked into a pita with some falafell or grilled chicken, tastes like spring-time.