Try some yardlong beans:
http://www.rareseeds.com/thai-purple-podded-yard-long-bean/?F_Keyword=long%20beans
Mine make all summer long. They sull a bit if the temps are consistently over 105 but as long as you water them they’re real troopers. Pick them very small (pencil lead size if possible or slightly larger) and stir fry with peppers, zucchini, chicken/etc. Yummy.
I'm glad to hear they like the heat. I planted some July 21st. I was surprised they came up in a few days. They're aout 9 or ten inches tall already.
Guess I can plant some more..I'm not really a fan of green beans. I have contenders right now, and usually manage to give them away...or let them sit around until they shrivel up.
Just an update. I planted yard long beans along the base of my gonna be a Texas Prepper’s Greenhouse.
It’s only 97 outside right now..but I’m sure it will be nearer to 100 later on..I saw some cute little wrens sitting on the grids earlier, flying around in it..looking for bugs, I hope, and not planning an attack on my tomatoes.