01 - Preheat oven to 400°F. Wrap each beet individually in foil and place on a baking sheet. Roast for 40 to 50 minutes until tender when pierced with a fork. Allow to cool; peel and cut into wedges.
02 - While beets roast, toast walnuts in a dry skillet over medium heat for 3 to 4 minutes, stirring frequently, until fragrant. Set aside.
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 roasted beet wedges, crumbled goat cheese, and toasted walnuts.
05 - Drizzle the dressing evenly over the salad just before serving.