Photo by Obsidian Soul Sweet potatoes are good for energy. In Zambia sweet potatoes are eaten as a vegetable. They are tasty and nutritous. Ingredients Sweet potato leaves or kalembula as they are commonly known in Zambia. 500grams 2 medium tomatoes and 1 medium bulb onion. 1 dessert spoon cooking oil. 2 teacups pounded groundnuts. …