Check out www.namastefoods.com They have a Sugar free muffin mix. They also have a pizza crust mix and pancake and waffle mix. I have a celiac daughter and two boys who are sensitive to wheat and soy. They have issues with dairy as well. Namaste products are excellent tasting I have tried almost all of their products. There products are all corn, dairy, gluten and soy free pretty sure none of them contain any yeast either.
I do watch the carbs myself pretty much but I will have a small pizza with olive oil, basil, Sea Salt and a bit of goat cheese. I will also sometimes have some pancakes with nutmeg and cinnamon and I will dip them in the tiniest amt. of maple syrup. I do this pretty infrequently. My health has also improved drastically so I feel like I can have a few bad things now and then.