1. In a large skillet over medium heat add the olive oil, garlic & shallots. Cook until fragrant, about 5 minutes.
2. Reduce heat to low & add the mushrooms. Season with salt & pepper. Cook until softened, about 10 minutes.
3. Add the balsamic vinegar & prosciutto. Cook until the prosciutto begins to crisp up.
4. Add the peas & cook until heated throughout.
5. Finish with parmesan cheese & serve.