In a bowl, combine the breadcrumbs, olive oil, and Parmigiano-Reggiano. Season with a little salt and pepper and mix. Set aside.
Cut off the ends of the escarole and discard. Roughly chop into large bite-sized pieces. Thoroughly wash.
Bring a pot of water to a boil and add the escarole. Blanch for 1 -2 minutes and then transfer to an ice bath. Once cool, wring out water and set greens aside.
Set oven to broil. In a large cast iron skillet over medium heat, add olive oil. Once hot, add the garlic, cherry peppers, and prosciutto. Cook until fragrant, about 3 - 4 minutes, stirring frequently.
Next, add in the blanched escarole, stirring to combine. Season with salt and pepper to taste. Cook for 2 minutes.
Then, add in half of your breadcrumb mixture and cook for 1 - 2 minutes. Stir frequently to prevent burning.
Next, top with the remaining breadcrumb mixture and Parmigiano-Reggiano. Transfer to your oven and broil for a few minutes, or until slightly browned. Serve and enjoy.