You can eat beans and peas if they are in the edible pod.
They won't have any of the nasties since they are the immature seed.
What is better than yellow wax beans with butter in August? Perhaps snap peas straight from the vine while weeding.
I would not suggest getting a catalouge. Unless you want to be disappointed that you only have 15 square feet haha! Seedsaver.org is great. They will have lots of heirloom varieties that are unique like red carrots or chocolate peppers.
I still have 2 4 x 8 plots reserved at my ex wifes backyard haha! I can't wait till spring!