Preheat the oven. Heat your oven to 450°F. If you have a convection setting, that works especially well for crisp, charred edges. (If you do not have convection, roasting on a baking sheet fitted with a wire rack also helps air circulate.)
Prep the cabbage. Slice the napa cabbage into thin ribbons. Toss with about 1½ tablespoons avocado oil, salt, and pepper.
Spread it out. Arrange the cabbage on a parchment lined baking sheet in a thin, even layer. Avoid piling it up. If needed, use 2 baking sheets.
Crisp the quinoa. Toss the cooked quinoa with the remaining oil, a pinch of salt, and spread it on a separate parchment lined baking sheet
Roast. Roast for 17 to 20 minutes, until the cabbage is tender with charred edges and the quinoa is golden and crisp. Stir the quinoa every 7 to 10 minutes so it crisps evenly.
Make the dressing. While everything roasts, blend the tahini dressing ingredients until smooth and creamy.
Assemble the salad. Add the warm roasted cabbage and crispy quinoa to a large bowl. Toss with enough dressing to coat. Top with pomegranate seeds, shaved apple, walnuts, and sesame seeds. Serve warm or at room temperature.