I am gluten dairy and soy free, but I do eat meat. can you have fish or chicken? I eat alot of that with fresh whole foods, not processed gluten free packaged stuff. that stuff is pretty expensive and I am happier not having food out of a box. I usually make up a tray of baked chicken, maybe fish in the oven and have it for the week. then I bake a bunch of sweet potatoes for the week. roast assortments of veggies in a tray and you can eat that all week too, like eggplant, mushrooms, squash. spaghetti squash is a favorite around here. shop mainly the perimeter of your stores, that's where the real food is, make up a bunch and eat all week.
I also have almond milk and make a fruit smoothie with it every night.