Call it Tjella or Ciabbotta and you are still pointing at the same Abruzzo listing: two names, one place in the PAT register. The double title is less a quarrel than a reminder that the dish lives in the kitchen, not in a single spelling. What matters is the tray that comes to the table, not which word you use when you ask for it.
A documented version builds that tray in layers. Summer vegetables sit with onion, parsley and garlic, then oil, and the whole arrangement bakes gently until heat and fat pull the pieces into one soft, aromatic mass. Garlic warms the air as it cooks; parsley keeps a green, herbal edge against the sweetness of onion and ripe produce. Nothing here is rushed: the oven does the quiet work of settling the layers.
That is why the food still earns curiosity. It is not a spectacle of technique so much as a summer argument for patience: vegetables, allium, herb and oil, named twice in Abruzzo and cooked once, slowly, in a single pan.