Can you eat tofu? what about yogurt? other beans (chick, lentil, kidney)?
If you are eating these veggies (the ones you can) anyway, and you aren't getting bored, I don't see why you can't just omit the potatoes. You can bring sweet potatoes back later. And you are allowed brown rice as well.
ALL VEGGIES (but avocado and white potatoes) are ok

there are lots to chose from and maybe you can try some new ones!
But I agree with brandilynn, go see your dr. and ask first!