sunflower seeds
The sunflower seed is the seed of the sunflower (Helianthus annuus).
Researchers develop a "space salad" perfected suited for astronauts on long-durations spaceflights. The salad has seven ingredients (soybeans, poppy seeds, barley, kale, peanuts, sunflower seeds, and sweet potatoes) that can be grown on spacecraft and fulfill all the nutritional needs of astronauts.