Cook pasta in salted boiling water according to package instructions.
In a large skillet over medium heat, heat up oil. When it starts shimmering, working in batches, add prosciutto slices in a single layer and cook until crisp, about 2 minutes per side.
Transfer them to a cutting board or a plate lined with paper towels to absorb any excess oil and set aside while doing the other two.
When cool enough to handle, crumble the fried prosciutto and transfer to a small bowl until needed.
Add onions, season with salt and sauté until they start getting soft, about 2 minutes.
Add red peppers and cook for 2 minutes, before adding mushrooms; season with black pepper. Add butter and sauté for 6 minutes or until tender.
Add pressed garlic and quickly sauté it for only 1 minute.
Pour in half-and-half and chicken broth; bring the mixture to a boil. When it gets there, reduce the heat and simmer gently for 5 minutes or until the sauce thickens.
Add cooked turkey; season with Italian seasoning and red pepper flakes. Mix well and simmer gently until the turkey is warmed through.
Return crumbled prosciutto and add cooked pasta.
Incorporate the ingredients with the mixture then add a generous handful of grated Parmesan cheese. Mix to blend before adding the remaining cheese; toss one more time.
Serve in warm bowls and garnish with chopped parsley.