Season the chicken breasts with olive oil, ranch packet, paprika, and black pepper in a large bowl.
Start to boil the water for the noodles. Add salt to the water once boiling. Cook until al dente according to the box's directions.
While the pasta cooks, go ahead and add the chicken with butter to a large stock pot over medium-high heat. Once halfway cooked through, add the garlic and sun-dried tomatoes. Continue to sauté until the chicken is cooked through.
Drain the pasta and add to the chicken with diced tomatoes, cream of mushroom soups, a splash of heavy cream or milk ( I'd start with 1/4 cup, mix, and add more as desired). Once mixed to your desired consistency, add in the shredded cheese.
Stir over medium heat until the cheese has melted. Serve immediately with Italian parsley, parmesan, and red pepper flakes on the side for garnish.