Preheat Oven to 425 degrees F. Preheat the cast iron pan in the oven as well.
Cut the tip off the stem of the brussel sprouts but leace as much as possible. then slice the brussel sprouts in half.
place the brussels in a large bowl and toss with mayonnaise, parmesan and seasoning.
Once the oven and cast iron have preheated place the brussel sprouts cut side down in the pan, add the prosciutto around the brussels in the empty spaces of the pan.
Roast for 12-15 minutes until brussels are golden and tender. Serve with vodka dipping sauce, garnish with fresh grated parmesan cheese.
Notes
serving size is ¼ lb of Brussel sprouts or ¼ of the entire recipe