I don't live in Houston, but was there recently, I live in the Dallas area. However, when I was there I did a search and found a place called Pat Greer's Kitchen. They prepare takeout raw vegan food. They also sell through a company called My Fit Foods that I do know alot about, they are reputable. I tried a place, Sunshine Foods, it was ok, but really out of the way and they advertised that they were raw, but had everything and weren't real clear on the definition of raw.
I posted a recipe called instant hot cereal a couple of days ago, it travels very well and would take care of breakfast.
I also make an instant soup. I dehydrate spiralized zucchini, sliced carrots, green onion, parsley, sliced celery and kale leaves.
Then I dehydrate tomatoes, red bell pepper, more celery, carrot , cilantro, parsley and green onion. Once totally dry, I grind that in the coffee grinder until fine, I add nutritional yeast and grind it too. You can season it with salt and I use a dried no salt organic seasoning. I pack the dried vegs and the powder in bags at a ratio of 1 c. vegs to 2 heaping tablespoons broth powder. I add hot water and instant soup. I eat that every day for lunch! You could make tomato bread from this site, it's called Amazing Pizza Bread, I believe. It's delicious and versatile. And not too fragile to pack.