These open-faced sandwiches, known as tartines, showcase the entire beet. The vegetable itself is thinly sliced and layered on top of toasted bread, along with the sautéed stems and greens. “Buy organic, young beets and look for healthy, tender leaves,” recommends New York City–based recipe developer Laura Rege. For a bold, colorful presentation, combine golden and red beets. Though this recipe calls for both flaky sea salt and regular, feel free to use one or the other, if you don’t have both. Prepare them in advance as party finger food—they’ll hold up well at room temperature.