I was taught how to make this recipe during a vacation in Morocco, where I was lucky enough to spend some time with the chef of a restaurant, Naima. In Morocco, people eat it straight out of the tagine with lots of bread to soak up the sauce but it also makes the best spaghetti and meatballs I've ever tasted! The key is to use the freshest, juciest tomatoes you can find. If you aren't lucky enough to have a tagine, you should be able to make this dish in a deep frying pan, as long as it has a cover. I think a non-stick pan would be best. One other thing, be careful of adding onions to this dish as they are very watery and will make the sauce runny. If you do add onions, you will probably have to let it simmer uncovered for a few minutes to reduce the sauce.