This sandwich was awesome- I would pay money for it at a cafe. The red pepper and oregano in the feta made a huge difference. I did add some shaved red onion to cut through the richness of the eggplant, red pepper, and cheese, but more lemon juice would have done the same thing.
The only negative is that while I was stuffed immediately after eating the sandwich because of how rich it was, I was hungry an hour later since there's no protein. I would suggest pairing it with a side salad with cannelini beans.
All in all, will make again.