To make ahead: Roast the sweet potatoes, and prep all the salad components. Store things in a few separate containers in the fridge: 1) the arugula, 2) the dressing, 3) the raw fruits/veggies, 4) the roasted sweet potatoes. The pistachios can stay at room temperature. Assemble everything at the last minute, and serve.
Find it online: https://cardamomandtea.com/406/pomegranate-fennel-zaatar-salad/