Classic Central European cuisine consists of a main side dish, often also called a filling side dish, then salad and/or vegetables and meat/fish. And since we were children, we have learned that there are three main side dishes: rice, pasta and potatoes. Which brings us to our topic, root crops. Do we really need more than potatoes? What are the distinguishing features of oca and yacon? Why do they enrich the garden and kitchen alongside potatoes? How are they grown and how can we produce and sell young plants?