Boil water in your large pot.
Add salt generously to the water.
Cook ziti according to package directions.
Drain pasta but don't rinse it.
Set aside while preparing the sauce.
Mix marinara and Alfredo sauces together.
Add ricotta, fontina, Romano, and Parmesan.
Stir in Italian seasoning.
Season with salt and pepper.
Mix everything until well combined.
Add cooked ziti to cheese sauce mixture.
Toss gently until pasta is coated.
Make sure every piece gets covered.
Transfer to your baking dish.
Sprinkle mozzarella cheese on top evenly.
Cover dish with aluminum foil.
This prevents cheese from burning.
Preheat oven to 375°F.
Bake covered for 20 minutes.
Remove foil and bake 10 more minutes.
Cheese should be bubbly and golden.
Let it rest 5 minutes before serving.