COOK THE PASTA NOODLES: Cook the pasta noodles according to package instructions, or until al dente. Reserve 1 cup of pasta water.
ROAST THE PROSCUITTO: While the pasta is cooking, prepare the crispy prosciutto. Line a baking sheet pan with parchment paper and place prosciutto flat with space between each. Bake for 15 minutes at 350°F. Remove from the oven and let cool for 5 minutes.
COOK THE CHICKEN BREAST: Season the chicken generously with salt, pepper, and seasonings of choice. In a large skillet over medium-low heat, add 1 tbsp cooking oil. Cook the chicken breast for 5-6 minutes on each side, or until fully cooked and the internal temperature reaches 165°F. Transfer the cooked chicken to a plate and set aside. (Deglaze the pan with a bit of water if necessary before moving on to make the sauce in the skillet.)
ADD CHEESE AND HERBS TO THE SAUCE: In a large skillet over medium-low heat (the same skillet chicken was cooked in), add rosemary, sage, and a bit of oil. Saute for about 1 minute. Then, add the butternut squash puree and 1/2 a cup of reserved pasta water, and stir to combine. Then, add in the parmesan cheese and stir until melted.
COMBINE: Toss in the pasta noodles and sun-dried tomatoes. Mix until all the pasta is coated in the pasta sauce. If needed, thin the pasta sauce by adding more reserved cooking water.Top with crispy prosciutto pieces, sliced chicken breast (optional), and more parmesan cheese.