As you can see by the links, "coca de recapte" is a savory flatbread with escalivada (roasted peppers, aubergines/eggplant)
To this, various other savory ingredients can be added (some vegetarian, some not)

I wouldn't worry about the change from "recapte" to "recapta" as this is a very common error, due to the fact that the pronunciation for the "neutral e" in many parts of Catalunya sounds, to many people, perhaps more similar to the Castillian "a" than a Castillian "e"