Leftover brisket, pot roast, pork roast, chicken, shrimp, even ground beef. Many times I buy a big pack of ground beef and cook some, but certainly don't use it all. So I freeze a small bag ... and this is a great way to use leftovers. Perfect for a night with a bowl of soup or a salad nights. Just adds a bit more, rather than a slice of bread, roll or a grilled cheese. I use store bought pizza crust, but by all means make your own if you want. You can even buy the dough at most pizza restaurants. But this is a supposed to be a quick easy dinner. Add some chopped broccoli, peppers, onions, cheese or any combination, and make small rounds of the dough, stuff, fold them over and bake. Just serve with a nice quality marinara sauce for a dipping and you have a perfect light addition to a soup or salad dinner.