1. Immerse the chopped cauliflower into salted boiling water and cook until soft, up to 20 minutes. This time will vary depending on how small the pieces are, so check them every few minutes.
2. Drain and transfer into bowl. Add margarine and soy cheese, if desired. Mash with fork until the florets are broken down and mashed.
3. In addition to salt and pepper, you may add any other seasonings that will complement your tastes and the meal these accompany.
Ideally this will be a substitute for mashed potatoes. Enjoy!