Raw beetroot is actually a great salad vegetable. We have it grated sometimes. Some can be a little earthy and have a bit of heat like radish or ginger.
Had raw grated beetroot in my salad today for lunch, and very tasty it was too. I pulled it out of the ground five weeks ago, weighed 1.4kg - it's the purple-and-white stripey version, makes the salad quite colourful. Been cutting bits off it to grate every time I have a salad. For some reason, beetroot seems to keep extremely well in the fridge.
Oh, I started when it was fresh. It takes a while to munch through a 1.4kg root. And it actually seems to be remarkably unaffected by time, so far. Probably only a couple more salads left in it now.