Flat beans, also known as helda beans, romano beans and "sem fhali" in some Indian states, are a variety of Phaseolus coccineus, known as runner bean with edible pods that have a characteristic wide and flat shape. Flat beans are normally cooked and served as the whole pods, the same way as other green beans.Flat beans, also known as helda beans, romano beans and "sem fhali" in some Indian states, are a variety of Phaseolus coccineus, known as runner bean with edible pods that have a characteristic wide and flat shape. Flat beans are normally cooked and served as the whole pods, the same way as other green beans.