Beets are
far better roasted. I evoo lightly and sometimes add a sprig of thyme or marjoram. No need to peel. Wrap in foil and roast; the peel will come off easily post cooking. (Alternatively, toss with ol in a baking pan, cover tightly, and roast. I usually just foil the beets.)
If I get dissimilarly sized beets I group like-sized in each piece of foil and pull each group as it finishes.
Beet greens are nice anywhere you'd like 'green' notes. Had I not found perfect raab the other day I had planned to use the beet greens I had on hand for
this. They are also nice under grilled or seared fish or with roasted brassicas, especially cauliflower. (Try making a potato purée and roasting some cauliflower. Lightly brown some diced pancetta or homemade bacon in a pan, remove, then sauté the greens in the pan till wilted; hold. Sear or grill diver scallops. Plating: Spread the potato purée on the plate; drain the greens well the place on the potatoes along with the pancetta, blending all together just slightly. Intersperse the scallops with the roasted cauli on top.)
You can flavor beet greens, if sautéing, with complentary spices/herbs/aromatics depending on their use. E.g. for an Asian-esque thing you could reconstitute some dried Chinese mushrooms (if unavailable fresh) and sauté them with garlic, minced dried chile or chile flakes and a little ginger, then add and wilt the greens, splashing with rice vinegar and/or mirin to flavor. Add any other spices or flavorings (soy, 5-spice, S. peppercorns, as desired, ). Brown rice would be a good idea here.
The same process--but with other flavors--can be used to make the greens work with different cuisines.
They also work well chopped finely, wilted, squeezed well, then folded into, say, softened goat cheese mixed with a touch of cream or sour cream, as a filling for something else.
If you can score teeny tiny baby beets (and baby turnips!) they are wonderful in risotti. Working the greens in (finely chopped) is a nice counterpoint to the sweet baby vegs.