1. Dust a tray with cornstarch. Mash the spinach, tofu, garlic, ginger, soy sauce, chili oil, and scallions together with your hands. Taste and adjust seasonings. Put the mixture aside for a while while you make the dipping sauce.
2. For sauce, mix the soy sauce and seasoned vegan rice wine vinegar together, and then top with either scallions or lemongrass. Put this in the fridge to chill and get all yummy while you stuff the wontons.
3. To stuff the wontons, take a teaspoonful filling and tuck it into the wonton skin. Fold the skin into a triangle and seal. If it doesn't seal well, try moistening the edges with a little bit of water. Set these on prepared tray. To cook the wontons, you can either deep fry the wontons until they are crispy in a good hot oil or cook them like potstickers.
4. To cook them like potstickers, mix vegan Worcestershire, orange juice, and another dash chili oil in a bowl with some water so you have about 1 1/2 cups. Heat a bit of oil in a nonstick pan and put the wontons in. Fry them until they are golden on 1 side, then flip.
5. When they have all been browned on one side, pour on the saved liquid. Cover quickly to get all that good steam in. Steam for a bit, then take the cover off and let them absorb most of the sauce. Serve with the yummy dipping sauce you prepared earlier.