Preheat oven to 400°F
Cut off Romanesco florets (as you would broccoli or cauliflower) and place in a medium size bowl. Trim the thick skin off the base of the stem then chop stem into small pieces to match the florets.
Toss with olive oil, salt, pepper.
Lay Romanesco in single layer on baking sheet and bake for 18 minutes, toss, then return for appx 15 minutes, maybe longer. done when golden brown