Okay. I hate when people write reviews after having completely adulterating the original recipe. So full disclosure, I used extra large eggs instead of large because that's what I had, and I used dried oregano (half of the amount called-for) because fresh was too expensive. Otherwise, I made this recipe just it was written. I was encouraged by the review that said the flavors all worked well together.
I had to agreed that the flavors did work well together, but there was too much of a good thing. It was overly herby for my taste. I would definitely try this recipe again, but cut back on the herbs and the salt. The prosciutto and cheese makes the frittata salty enough.