Tomato, Avocado and Golden Beet Salad

pound(s) uncooked beets golden variety, scrubbed, tops removed (about 4 medium beets)

medium fresh tomato(es) different colors or heirloom, cut into 1/4-inch wedges

item(s), medium avocado ripe, Hass, cut into 1/2-inch cubes

small uncooked red onion(s) cut in half and sliced into thin half moons

olive oil extra virgin

red wine vinegar

table salt

black pepper freshly ground

basil fresh, chopped

chives fresh, chopped