what do you replace mayonaise with....

.... in salad dressing if its less than half a cup

thanks!

would sour cream or plain yogurt work?

I have substituted (not 100% about 50%) with yogurt successfully. Like for a broccoli salad.

Oops I forgot to say it needs to be non-dairy:)

Thanks!!!

Tofu.
I saw it on Top Chef!

What kind of salad is this for? Could you just add a bit more oil?

You could make your own, no dairy. http://www.foodnetwork.com/recipes/a...ipe/index.html. Even commercial doesn't usually have dairy, iirc, is it a cross-contamination issue?

Catherine