Boil the rigatoni in salted water and cook for 1 minute less than al dente. Drain and set aside.
Slice chicken breasts into thin strips. Season with seasoned salt, then coat in flour, beaten eggs, and Italian breadcrumbs. Fry in vegetable oil with butter until golden brown. Slice into bite-sized pieces.
Preheat oven to 375°F (190°C). Combine rigatoni with marinara sauce. Spread half into a greased 9 x 13-inch baking dish. Top with half of the chicken, mozzarella, and parmesan.
Add remaining rigatoni, then top with remaining chicken and cheese. Bake uncovered for 25 minutes. For a crispier top, increase heat to 425°F and bake 5 more minutes.