Fortunately there are several steps that you can take right now. Unfortunately I am a welfare mother right now, and while we've managed to make things better in the last few months I am still on a tight budget. I am on food assistance right now (Food stamps.) I also have my son on the WIC program. If you haven't heard of this program it is for Woman, Infants, and Children. If you have children 5 or under they will assist a little per child.
Now that I have mentioned both of those programs, in my area, there are farmers markets that cooperate with both programs. During the summer till October, I can double the worth of the amount that I am willing to spend at the market and WIC has different events that they hold where they will distribute coupons at the farmers markets for equivalents of cash that can be spent at different farmers markets. At my farmers markets, there are people that you could purchase fully grown plants for a decent price even using the funds from the cash assistance.
There is a program in my area that is called the angel food program that is run by a church. They will group together the fixings for a couple of meals and sell the group of food items for an extremely cheep price. I don't know if this is taking place in your area or not but the one in my area accepts food stamps.
On top of that, I network with a few ladies that I have worked with in the past and a few who my mom works will. I have never had to utilize a food pantry but if I did, I know of five in my area, and what days they would distribute food.
I know that I am in Michigan and you are in Texas but I hope that some of this information helps.