Roasted Rainbow Beet and Burrata Salad

large handful of baby greens, micro-greens, or sprouts

-ounce (approximately) ball of burrata cheese

large or 2 small red beets

large or 2 small pink Chioggia beets

large or 2 small golden beets

chopped toasted walnuts

walnut basil oil

fresh basil leaves (about 2 loosely packed cups)

walnut oil (plus more for tossing beets)

juice of half a lemon (about a tablespoon)

salt