Beans are real easy. Grow from seed, get the stringless variety, and give them something to climb (I use jute twine).
Biggest issue is keeping the deer away, because they love bean plants and will eat them before anything else (haven’t had an issue since putting up the electric fence):
Biggest issue is keeping the deer away, because they love bean plants and will eat them before anything else (haven’t had an issue since putting up the electric fence):