01 - Preheat oven to 400°F. Wrap each beet in foil and place on a baking sheet. Roast for 40 to 50 minutes until tender when pierced with a knife. Cool, peel, and cut into wedges.
02 - Toast walnuts in a dry skillet over medium heat for 3 to 4 minutes until fragrant and lightly browned. Remove from heat and allow to cool.
03 - Whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper in a small bowl until emulsified.
04 - Arrange mixed greens on a serving platter or individual plates. Top with beet wedges, toasted walnuts, and crumbled goat cheese.
05 - Drizzle vinaigrette over salad just before serving. Sprinkle with fresh chives or parsley if desired.