Nutritious Edamame soybeans can be substituted for green peas or lima beans in any recipe. In Japan they are traditionally prepared by boiling the pods in salted water. The beans are then squeezed from the inedible pod directly into the mouth. They're rich in protein, fiber, calcium and vitamins A and B. Grow like other bush beans. Plant 6 seeds per foot. Approximately 110 seeds per ounce.