01 - Set the oven to 400°F and prepare for roasting.
02 - Wrap each beet individually in aluminum foil, place on a baking sheet, and roast for 35 to 40 minutes until tender when pierced with a knife.
03 - Once cooled, peel the beets and cut into 1-inch wedges or slices.
04 - Whisk together olive oil, balsamic vinegar, honey, Dijon mustard, salt, and pepper in a small bowl until emulsified.
05 - Arrange mixed greens on a serving platter. Top evenly with roasted beet slices, crumbled feta, and toasted walnuts.
06 - Drizzle the balsamic dressing over the salad and sprinkle chopped parsley on top, if using.
07 - Serve immediately to enjoy optimal freshness and flavor balance.