01 - Preheat the oven to 400°F.
02 - Wrap beets individually in foil, drizzle with 1 tablespoon olive oil, and place on a baking sheet. Roast for 35–40 minutes, or until tender when pierced with a fork. Allow to cool slightly, then peel and cut into wedges.
03 - While the beets roast, segment the oranges and grapefruit: Cut away peel and pith, then use a sharp knife to cut out the segments, collecting any juice for the dressing.
04 - In a small bowl, whisk together extra-virgin olive oil, lemon juice, honey or maple syrup, Dijon mustard, salt, and pepper. Add any reserved citrus juice to the dressing.
05 - Arrange beet wedges and citrus segments on a platter. Drizzle with the dressing.
06 - Sprinkle with fresh mint and toasted nuts. Serve immediately or at room temperature.