01 -
Boil penne pasta to just al dente according to the package directions. Drain, reserving 1/2 cup of the pasta water.
02 -
While the pasta cooks, season the diced chicken breasts evenly with salt and pepper.
03 -
Heat olive oil in a large skillet over medium-high heat. Cook the chicken pieces for 5-7 minutes until browned and cooked through.
04 -
Add marinara sauce, Italian seasoning, garlic powder, parmesan cheese, the cooked pasta, and reserved pasta water to the skillet. Stir to combine and bring to a boil. Reduce the heat to simmer for 4-5 minutes to meld the flavors.
05 -
Remove the skillet from the heat. Sprinkle mozzarella cheese evenly over the top, cover the skillet, and let it rest for 5 minutes to melt the cheese.
06 -
Serve the dish hot and enjoy.