Preheat oven to 350º. Boil two pots of water, one for the macaroni (use the package directions to cook the macaroni al la dente), and the other pot of water is for the chicken breasts, boil until cooked through, about 20 minutes.
Once the macaroni is cooked, drain well.
Once the chicken is cooked, shred with two forks or a stand mixer with the paddle attachment.
Place the shredded chicken, macaroni, and both jars of pasta in a large bowl. Mix well to combine.
Transfer the mixture to a 13x9 baking pan or casserole dish.
Top with the shredded cheese and then the grated parmesan cheese.
Bake for 30 minutes or until all the cheese is melty and bubbly. Serve with a Caesar salad and crusty bread!
Notes
Since different foods are different sizes, nutritional facts are approximate and may not be exact but they are as close to accurate as I can calculate.