Preheat oven to 375℉
In a large bowl, mix together the jar pasta sauce, 1 cup of the stock/water, balsamic vinegar, oregano, and garlic until well combined. Lightly season with salt and pepper.
In a 9x13 baking dish, spread a even layer of sauce at the bottom, about 1-inch thick.
Place the pasta in a single layer on top of the sauce.
Arrange the frozen meatballs over the dried pasta.
Pour the sauce mixture over the meatballs and pasta. Then use the remaining stock to fill in the gaps, making sure all of the pasta is covered.
With a spoon, dollop the ricotta cheese around the dish.
Sprinkle the mozzarella cheese over the top, followed with the grated parmesan cheese.
Cover the baking dish with foil and bake for 40 minutes.
Uncover the pasta and bake for another 10-15 minutes, or until the cheese is slightly browned. You can also broil for an additional 2-3 minutes to brown cheese if preferred.
Let cool for 10-15 minutes before serving.