https://www.hallspumpkinfarm.net/
It's in Grapevine on Hall-Johnson. It's simple and small, but there are several really good places to take pictures. It's better for people who have LOs who won't be eating the funnel cakes or playing much. They do have a corn maze and hayrides but they aren't free.
I have a few more pics in my blog if you're interested.
Re: Free pumpkin patch recommendation