01 - Preheat the oven to 400°F.
02 - Wrap each beet individually in foil, place on a baking sheet, and roast for 35-40 minutes until tender. Allow to cool, then peel and cut into wedges.
03 - Toast walnut halves in a dry skillet over medium heat for 3-4 minutes until fragrant. Remove from heat.
04 - In a small bowl, whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper until emulsified.
05 - Toss mixed greens with half of the vinaigrette in a large bowl. Arrange roasted beet wedges on top, sprinkle with toasted walnuts and crumbled goat cheese, then drizzle with remaining vinaigrette.
06 - Serve immediately to maintain freshness.