In your large pot or saucepan, combine the 2 cans of San Marzano crushed tomatoes and 2 cans of tomato paste. Stir them together over medium heat until they are well incorporated.
Add the granulated sugar, onion powder, garlic powder, Italian herbs, salt, and black pepper to the pot. Stir to mix all the spices throughout the sauce evenly. The sugar helps cut the acidity of the tomatoes, giving you a balanced flavor.
Once your sauce is simmering, carefully add the frozen meatballs directly into the pot. Stir gently to coat them in the sauce.
Reduce the heat to low and cover the pot. Allow the meatballs to simmer in the sauce for about 25-30 minutes. Stir occasionally to ensure that the meatballs are heated evenly and the sauce doesn’t stick to the bottom.
Once the meatballs are heated through and the sauce is bubbling, it’s time to serve! You can enjoy them over pasta, on a sub roll, or with a sprinkle of fresh basil or grated parmesan on top.
