This dish was just great for a meatless Monday. It is definitely robust enough to serve as the main course.
I don't know if the potatoes have to be exactly those described, but if you can find some small, skinny ones, that is probably best.
The delicata squash is delicate and doesn't need to be peeled. I think using this squash matters for the texture of this recipe.
The amounts of ingredients listed can be varied.