Preheat the oven to 400F. Line a baking sheet with parchment paper, and place the sweet potatoes on top. Poke with a fork, and bake for 50 minutes to 1 hour, until cooked through. Allow to cool slightly.
Carefully remove the skins, and keep the sweet potato for another recipe. Slice the skins into square pieces.
Season the skins with nutritional yeast, parsley and a little olive oil if desired. Heat a pan over medium, and crisp the sweet potato skins, around 3 minutes on each side.
Combine all listed tahini dressing ingredients.
Stack the sweet potato skins on a plate, drizzle with the tahini dressing, followed by the fresh parsley and flakey salt. Enjoy