4-Cheese Baked Ziti Alfredo

4-Cheese Baked Ziti Alfredo

1 - 16 oz. box ziti pasta
1 1/2 jars Alfredo sauce
1 - oz. container sour cream
1 - 15 oz. container ricotta cheese
2 large eggs, lightly beaten
1/2 cup grated Romano cheese, divided
1/2 cup grated Parmesan cheese, divided
1/4 cup chopped fresh parsley
1 1/2 cups shredded mozzarella cheese

Preheat oven to 350 degrees.
Cook ziti according to package directions; drain and return to pot.
In a medium bowl, stir together Alfredo sauce and sour cream and toss with ziti until evenly coated. In another medium bowl, stir together ricotta, eggs, 1/4 cup Romano, 1/4 cup Parmesan and parsley. Spoon half of ziti mixture into a lightly greased 13x9-inch baking dish. Spread the ricotta mixture evenly over pasta mixture. Spoon remaining pasta mixture evenly over ricotta cheese layer; sprinkle with mozzarella cheese and remaining 1/4 cups of the Parmesan and Romano cheeses.
Bake for 30 minutes or until bubbly and top is golden brown.