Preheat the oven to 400°F (200°C).
Wrap each beet individually in aluminum foil and place on a baking sheet.
Roast for approximately 45 minutes or until the beets are fork-tender.
Remove from the oven and allow them to cool completely before peeling.
Slice or dice the roasted beets into bite-sized pieces.
Thinly slice the English cucumber into rounds.
In a large mixing bowl, gently combine the cucumbers and roasted beets.
Sprinkle the crumbled feta cheese over the vegetables.
Add the freshly chopped dill.
In a small bowl, whisk together the olive oil, balsamic vinegar, salt, and black pepper.
Pour the dressing over the salad.
Toss gently until everything is evenly coated.
Serve the Beet Salad with Feta, Cucumbers, and Dill chilled or at room temperature.