In a saute pan over medium heat add olive oil and saute onions for 3 minutes. When the onions are starting to become translucent add minced garlic and continue cooking and stirring for 1-2 minutes. Refer to the pictures above if needed.
1 tablespoon olive oil, 1 teaspoon minced garlic, ½ cup diced onion
Add the diced tomatoes and Italian seasoning to the onions and stir all together. Bring the sauce to a simmer while stirring. Once the sauce begins to simmer, turn the heat to low and cover. Simmer for 20 minutes.
2 teaspoon Italian Seasoning, 28 ounces diced tomatoes
While the sauce simmers, cook the Rigatoni noodles as directed on the back of the package. Drain and set aside.
8 ounces Rigatoni
Once simmered for 20 minutes add ¼ cup cheese of each parmesan, mozzarella, ricotta, asiago, and Romano (or use 1 ¼ cup shredded Italian Cheese Blend). Mix until cheese is melted. The cheese may start to clump together once melted.
¼ cup mozzerella, ¼ cup parmesan, ¼ cup asiago, ¼ cup ricotta cheese, ¼ cup romano
Pour the sauce into a blender or food processor and pulse until smooth. This helps eliminate tomato chunks and spread the cheese if it has clumped together. (see notes for other options)
Top cooked rigatoni noodles with cheese sauce and serve immediately.
Video
Notes
If you want this meal to resemble a baked Ziti, add noodles to a 9x9 baking dish and top with cheesy marinara. Sprinkle ½ cup of mozzarella and bake for 10 minutes at 350*F or until the cheese melts and begins to bubble and brown.
If you don't have a blender or food processor, use a spoon or potato masher to break up the tomatoes. A blender is preferred so the cheese doesn't clump together, but this method will work.
For a more cost-effective meal use 1 ¼ cup Italian Cheese blend found in the shredded cheese section of most grocery stores. This has a blend of delicious cheese that will pair well with this recipe.
Be sure to have the sauce simmer for at least 20 minutes. This will give the tomatoes a chance to soften and become a smooth sauce.
If you can only find, or only have 3 or 4 of the cheeses, that's ok. Double what you have to have the same amount of cheese as the recipe states.
Use a baked potato as the base for this sauce instead of noodles. This will also make it a gluten free meal.
Use a baked potato as the base for this sauce instead of noodles. This will also make it a gluten free meal.
For a spicy option, you can add crushed red pepper to your taste. Either top individual bowls or mix into the sauce.