Vegetables: beets, carrots, potatoes should be well washed with a brush, baked in a “uniform”, wrapping each vegetable in foil, in the oven. It took about 30 minutes. Open the jar of seaweed, flip it into a colander and let the liquid drain. Hard-boiled eggs. Cucumbers should be taken canned, but you don’t need much (to taste). Peel the carrots and beets. Leave the potatoes in the foil until serving.