Sweet Potato & Quinoa Salad with Tahini

Name: Sweet Potato & Quinoa Salad with Tahini
Cuisine: American, Middle Eastern
Ingredients: 1 large sweet potato, cut into ¾-inch pieces (about 2 ½ cups); ½ teaspoon dried thyme; ½ teaspoon ground cinnamon; ¼ teaspoon ground nutmeg; Drizzle of olive oil plus 1 tablespoon for the onions (or coconut aminos); Salt & freshly ground black pepper to taste; 1 cup uncooked quinoa, rinsed; 2 medium yellow onions, sliced thinly into rings; 1/3 cup tahini; 3 tablespoons fresh lemon juice (about 1 large lemon); 1 tablespoon Dijon mustard; 1 tablespoon maple syrup; 1 garlic clove; Salt & black pepper to taste; 2 packed cups arugula; ½ cup cashews or to taste