Prepare the Roasted Sweet Potatoes and Tahini Dressing according to the recipes.
Assemble the salad on a large platter with the arugula, a drizzle of dressing, the sweet potatoes, and feta. Top with the avocado slices and squeeze a little lemon juice over the avocado. Drizzle with more dressing and top with the pepitas. Season with salt and pepper to taste and serve.