For the Meatballs:
Preheat the oven to 450F. Drizzle the olive oil into a 913-inch baking dish and use your hand to evenly coat the entire surface. Set aside.
Combine the ground pork, salt, cherry peppers, pickling liquid, bread, and eggs in a large mixing bowl and mix by hand until thoroughly incorporated.
Roll the mixture into round, golf ball-size meatballs (about 1 1/2 inches), making sure to pack the meat firmly. Place the balls in the prepared baking dish being careful to line them up snugly and in even rows vertically and horizontally to form a grid. The meatballs should be touching one another.
Roast for 20 minutes, or until the meatballs are firm and cooked through. A meat thermometer inserted into the center of a meatball should read 165F.
Allow the meatballs to cool for 5 minutes in the baking dish before serving.
For the Spicy Meat Sauce:
Two 26-ounce boxes Pomi chopped tomatoes or two 28-ounce cans whole plum tomatoes, roughly chopped with their liquid
Heat the olive oil in a large pot over medium heat. Add the onions, ground pork, red pepper flakes, and salt and cook, stirring constantly, until the meat is thoroughly cooked and the onions are soft and beginning to brown, about 15 minutes.
Add the tomato paste and continue cooking for 5 minutes. Add the tomatoes and stir constantly until the sauce begins to boil. Continue cooking for 35 minutes, stirring every 5 minutes or so to prevent the sauce on the bottom of the pot from burning. Taste and season with additional salt, if desired.