01 - Preheat the oven to 400°F (200°C).
02 - Wrap each beetroot in aluminum foil and place on a baking tray. Roast for 35 to 40 minutes until tender when pierced with a knife.
03 - Allow roasted beetroots to cool slightly, then peel and cut into wedges.
04 - Toast walnut halves in a dry frying pan over medium heat for 2 to 3 minutes, stirring frequently until fragrant. Remove from heat and set aside.
05 - In a small mixing bowl, whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and freshly ground black pepper until emulsified.
06 - Arrange mixed salad greens on a large serving platter or individual plates. Distribute beetroot wedges, crumbled goat cheese, and toasted walnuts evenly on top.
07 - Drizzle the prepared dressing over the salad just before serving to preserve freshness.