01 - Preheat oven to 400°F.
02 - Wrap each beet individually in foil and place on a baking sheet. Roast for 40-45 minutes, or until tender when pierced with a knife.
03 - Allow beets to cool, then peel and cut into wedges or bite-sized cubes.
04 - In a small bowl, whisk together olive oil, balsamic vinegar, Dijon mustard, honey, salt, and pepper until emulsified.
05 - In a large bowl, combine salad greens, roasted beets, and red onion. Drizzle with dressing and toss gently to coat.
06 - Transfer salad to serving plates. Top with crumbled goat cheese and toasted walnuts.
07 - Serve immediately.