Apply some Cajun seasoning or a spicy rub to the breasts and grill them along with the sausages until cooked to perfection, adding the onion, pepper, and garlic part-way through.
Cook the pasta in salted water al dente, according to package directions. While pasta is cooking, cut the chicken breasts into 1 inch cubes and sausages into 1/2 inch slices.
Add the onion, red pepper, and garlic to a skillet over medium heat and sautee for a few minutes, adding the chicken and sausage once done.
Add Cajun seasoning and flour, toss to coat. Add diced tomatoes, tomato sauce, pepper flakes, and hot sauce and bring to a simmer.
Pour in the half-and-half and heat through. The longer you cook the sauce the thicker it will get so simmer it until it is the consistency you want, 15-20 minutes.
Add the basil and let it simmer for another few minutes.
Finally, mix the chicken and sausage sauce with the pasta and serve. Top each serving with a sprinkle of Parmesan cheese.