Chicken Fajita Pasta Bake

Fill a large pot with lightly salted water and bring to a rolling boil. Add ziti and return to a boil. Cook, stirring occasionally, until tender yet firm to the bite, about 10 minutes. Drain.

Meanwhile, heat oil in a skillet over medium heat. Add onion and green pepper; cook and stir until soft, 5 to 7 minutes. Transfer to a bowl.

Cook chicken in the same skillet until no longer pink in the center, 7 to 10 minutes.