Any ready-to-bake frozen/fresh dough should work great. If you are vegan, then Rhodes Bake-N-Serv bread is known to be "accidentally" vegan. See the above blog post for reasons it might not be as vegan as you'd like. I am working on and will post a recipe for my own bake-and-serve type of loaf soon. In the meantime, you can use any white bread recipe. Just mix in the colors before the final rise.