I made this last night. It was fantastic. I didn't have capers and didn't add the red pepper flakes. I added black olives and the tomatoes and used, forgive me, white cooking wine. I will be making this again for sure.
It wasn't bad, but wasn't great. The kalamata olives were way to much and I LOVE kalamata olives! I used only half a cup and crushed them because they were just to much for a bite. I also cooked the topping first so the fish would be nice and hot. Could use more red pepper for our taste. Will experiment with it more.