Carefully slide tomatoes and their liquid into the oil. Bring to a boil, and season lightly with salt and crushed red pepper. Lower the heat so the sauce is at a lively simmer, and cook, breaking up tomatoes with a whisk or spoon, until sauce is chunky and thick for about 20 minutes.
Stir in the basil about 5 minutes before the sauce is finished. Taste sauce, and season with salt and red pepper if necessary.
Place Meatball on a serving platter. Top with hot tomato sauce and finish with grated Grana Padano Cheese.