Sugo di Pomodoro, Homemade Tomato Sauce, is the foundation for so many different recipes. You can add a can of drained tuna and a few capers to create a quick and sublime fish-based sauce. I steam mussels in this classic sauce to make Mussels Affogato. Use it as pizza sauce. The ideas are endless, which is why  I triple this recipe, so I have plenty on hand when needed.