01 -
Boil diced potatoes in salted water until tender, about 15 to 20 minutes. Drain thoroughly and allow to cool.
02 -
In a large bowl, whisk together olive oil, balsamic vinegar, Dijon mustard, salt, and black pepper until emulsified.
03 -
Add cooled potatoes and roasted diced beets to the dressing. Gently toss to coat evenly without mashing.
04 -
Serve salad chilled or at room temperature on a bed of fresh arugula or spinach. Garnish with crumbled feta cheese if desired.