The eggplant/pepper spread shows up under varying names, and slightly different preparations, in that part of the world. Perhaps it was under zacusca, the Romanian version, pindjur or lutenica (also Balkans), or kjopolou, the Bulgarian variant, etc. The proportion and presence of various ingredients can vary. For example, at my grocery, the difference between ajvar and pindjur seems to be the presence of tomatoes in the latter. Looking online at various recipes in their original language from that area, that seems to be the case. However, Wikipedia seems to say that in some places, they are used interchangeably, and also that pindjur is more an eggplant spread with red peppers, and ajvar more a red pepper spread that sometimes has eggplants. Once again, looking at recipes from the area, that does seem to be correct. Ajvar recipes are often given without eggplant. This is a little surprise to me, as the ajvar I’ve had typically does contain eggplant, and I always make it with eggplant myself.