I have frozen beet greens. I generally freeze greens in one of two ways. The first is in water. Sometimes, I blanche the greens, then freeze in the water. When you're ready to eat them, take them out, drain them, then stir fry in some oil and garlic. We eat our greens a little softer than most people (I'm from Georgia
), so we like these a good bit.
The other way is to blanche, then shock (in an ice water bath), then drain. After draining, I put the greens either leaf by leaf or in little clumbs on a cookie sheet to individually freeze. Once frozen, pop them off the cookie sheet and store in a ziploc bag. These greens aren't quite as soft, but very, very handy to just take out as much as you need during the year.