I only had beet greens once on a visit to my aunt and uncle's "camp" in Maine. She had a small garden and served fresh beets, and the greens as another side. They were sooooo good!
I'd love to make them, but unfortunately, whenever I see beets in the grocery store, they either don't have the greens attached, or they look so bedraggled and not enough to bother with.
If you can't see the bright side of life, polish the dull side.