Preheat your oven to 400°F (200°C).
Wrap the beetroots in foil and roast for approximately 45-50 minutes, or until tender.
Remove the skin from the beetroots and slice them into bite-sized pieces.
Peel, core, and chop the apples into bite-sized pieces.
In a small bowl, whisk together the olive oil, apple cider vinegar, Dijon mustard, salt, and pepper.
In a large mixing bowl, combine the sliced beetroot, chopped apple, eggs (if using) and dressing. Toss to coat.
Top with chopped walnuts or crumbled goat cheese, if desired.
Serve immediately and enjoy!