This simple mushroom soup is thickened with a bit of potato for a hearty, delicious, easy-as-pie soup with a texture that's thick enough to be filling but made so without any cream. (of course, if you feel like swirling in a bit of cream at the end for an even richer, more luxurious effect, you sure can)serve it with a green salad and a hunk of crusty bread for an easy, healthful dinner. This dairy-free vegan cream of potato soup also is thickened without any cream or milk.