Stop serving dry, mushy pasta casseroles. Master the ultimate cheesy baked rotini with chicken using a foolproof starch-and-moisture balancing technique.
Preheat your oven to 400°F. In a large bowl, toss the 4 whole chicken breasts with 2 tbsp. of extra virgin olive oil, 1/2 tsp. salt, 1/4 tsp. black pepper, 1/2 tsp. garlic powder, and 1/2 tsp. onion powder until evenly coated.
Lay the chicken on a baking sheet and roast for 20 minutes until the internal temperature reaches 165°F.
Boil Pasta and Rest Meat
While the chicken is baking, boil the 1 lb. of rotini in heavily salted water according to the package instructions for al dente.
Drain thoroughly. When the chicken finishes roasting, let it rest on a cutting board for 5 minutes to allow the juices to redistribute before slicing it into clean strips.
Sauce, Layer, and Bake
In a large bowl, combine the drained rotini, sliced chicken, and 16 oz. of marinara sauce, mixing well so the pasta spirals are fully saturated. Transfer the mixture into a large baking dish. Top evenly with 1/2 cup of grated Romano and 2 cups of shredded mozzarella.
Bake at 400°F for 10 minutes, or until the cheese shield completely melts and shows golden-brown spots.