I never thought about using proscuitto....bet it would be a nice addition, But I don't think I would like peppers in that, mushrooms maybe but I don't think peppers woulda dd much.
I just bake it in a raw crust, I heat the oven to 425 put the filled pie in the oven, leave it at 425 for maybe 8 to 10 minutes then turn down to 350....without opening the oven door.
I just use a regular glass pyrex 9 inch pie pan....it's very will....and will be fuller if you add more "stuff" to the recipe....so you have to be careful not to spill when putting into the oven.
Linda c