Place grated carrot, red bell pepper, watercress, pea shoots or radish sprouts, bean sprouts, and scallions separately on a platter. Place chard leaves on a second platter. Serve with almond and avocado mixtures. Invite everyone to spread a small amount of avocado mixture on the underside of a Swiss chard leaf, place a nugget of almond mixture at one end, and then add small amounts of whichever vegetable fillings they choose; roll up and eat.