These beans are flat in form, but not in flavor. Compared to standard green beans, these beans have a bright, slightly sweet flavor and more meaty texture. "... More green-tasting, more alive-tasting than other beans," reports Veggie Venture.
We blanched our flat beans in salted boiling water and then finished them in a frying pan with some olive oil, garlic, and chopped fresh tomato. Don't keep them in the pan for too long. Flat beans will start to break apart and turn mushy when overcooked.
Here in New York City, Yuno's Farms sells these flat beans for $2.50 per pound. Find Yuno's at the farmer's market near the UN on Wednesdays, and the Union Square Market on Mondays and Fridays.
We've only seen these beans in traditional green, but see that they come in yellow and purple too.