I usually eat beet two ways.
1)beet soup
beet cut to small bits, put it water bring to boil, add dill (herb) and little salt, done.
Not to many people's taste. But I like this simple soup, because the beet itself is very sweet.
2)sweet ans sour
Cut beet to thin slice put in larg amount at sugar, leave it overnight, add rice vinegar(Japanese one), enjoy.
Beet could be in place of raddish in many dishes, I could see it would do well in kimchi. But the key is that you don't cook it for very long time.