white bread and crackers/pasta question/ cheese sub

We're phasing in the GFCF diet with my 3 1/2 year old son, Danny. He lives on bread, crackers, etc. So far, he's rejected all of the GFCF breads and crackers we've tried. Is there such a thing as a good-tasting, soft white bread that toasts well? I'm willing to bake from scratch or from a mix, if that's the best option. Because of time issues, I'd prefer to be able to buy something that he'll eat, and bake when I can. Any of the prepackaged breads and/or crackers that taste good and toast well (bread)? Also, I'm ready to start subbing GFCF pasta for my son, but had a few questions. I used to boil up a big batch of pasta, top it with sauce, and then put it into small containers and freeze them, using as needed. Will cooked GFCF pasta freeze OK? Any special considerations here? Lastly, is there an acceptable vegan cheese substitute that he can eat? I want to make GFCF pizza. Some say Tofutti is OK, or Soymage. Janet in Illinois, mom to Danny (3 1/2) and Allison (6 months)