Step 1

Preheat the oven to 425°F (220°C).

Step 2

Spread the sweet potato rounds and onion wedges on a baking sheet, drizzle with 3 tablespoons of the oil, and season with salt and pepper. Roast, shaking the baking sheet halfway through, until the sweet potatoes are golden brown and tender, 15 to 20 minutes. Let cool slightly.

Step 3

Cook the farro according to the package directions. Drain.

Step 4

In a medium bowl, season the warm farro with the vinegar, remaining 1 tablespoon oil, salt, and pepper. Add the sweet potato, onion, radish, dill, pistachios, and goat cheese. To finish, drizzle the salad with the lemon juice and sprinkle with smoked paprika, flaky sea salt, and pepper. If the dish seems a little dry, drizzle it with extra oil.