In a large saucepan over medium heat, add the olive oil and chopped onion. Saute until translucent. Add in the minced garlic and stir.
1/2 Tablespoon extra virgin olive oil, 1/4 cup chopped onion, 1 teaspoon minced garlic
Pour in the crushed tomatoes, Italian seasoning, sugar, and salt & pepper. Stir together and bring to a simmer.
28 ounces peeled & crushed tomatoes, 1/2 teaspoon Italian seasoning, 1 teaspoon granulated white sugar, salt & pepper to taste
Add in the meatballs, turn heat to low, cover, and let heat through - about 5-8 minutes.
12 ounces fully cooked meatballs
Once heated through, toast your sub rolls and pile on meatballs and cheese.
sub rolls, sliced provolone cheese, shredded mozzarella cheese
Let cheese melt and enjoy!
Notes
Any meatball can be used - I used Aidells Italian Style Chicken Meatballs in this batch. Homemade meatballs can also be used, as long as they're precooked.
Store leftovers covered in the fridge for up to 3 days.