01 - Preheat oven to 400°F. Wrap each beet individually in aluminum foil and place on a baking sheet. Roast for 40 to 45 minutes until tender when pierced.
02 - Allow roasted beets to cool slightly, then peel and slice into bite-sized wedges.
03 - Whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and black pepper in a small bowl until well combined.
04 - Toss mixed salad greens with half of the dressing in a large bowl to coat evenly.
05 - Arrange dressed greens on a serving platter; top with beet wedges, crumbled goat cheese, and toasted walnuts.
06 - Drizzle remaining dressing over the salad immediately before serving.