From the Olive Garden Website
Creamy marinara sauce with mozzarella, parmesan, romano, riccotta and fontina
I haven't seen fonita cheese in my grocery store and have substituted povolone.
The best I can say is that the sauce is the same as the one used in the Five Cheese Ziti al Forno recipe.
That is posted on this site, do a search.
But, the five cheese marinara has chunks of tomatoes in it, and the ziti sauce does not.
Here is the recipe:
4 Cups tomato sauce
2 Cups Alfredo sauce
1/2 Cup ricotta cheese
1 Teaspoon garlic pepper
1/2 Teaspoon garlic powder
1/4 Cup mozzarella cheese, shredded
3 Tablespoons fontina cheese, shredded
Use the marina sauce if you want chunks of tomato.
About Olive Garden
Olive Garden is the leading restaurant in the Italian dining segment with more than 800 restaurants, more than 96,000 employees and more than $3.6 billion in annual sales. Olive Garden is a division of Darden Restaurants, Inc., (NYSE: DRI), which owns and operates more than 2,100 restaurants that generate over $8.5 billion in annual sales. Headquartered in Orlando, Fla., and employing more than 200,000 people, Darden is recognized for a culture that rewards caring for and responding to people. In 2014, Darden was named to the FORTUNE “100 Best Companies to Work For” list for the fourth year in a row. Olive Garden is committed to making a difference in the lives of others in the local community. As part of this commitment, Olive Garden restaurants have donated nearly 30 million pounds of food to local community food banks across the country.