Fanned Zucchini with Olive Paste and Oranges

Zucchini is partly sliced, seasoned with olive paste, and fanned to bake neatly: simple, effective, and Medterranean. Choose whichever cylindrical zucchini matches the colors and moods of the meal: classic dark, paler Middle Eastern, gloriously golden, or mid-green ribbed Roman. Serve as an appetizer, side dish, salad, or part of a room-temperature meal of little dishes (tapas, mezze, whichever).