1. Heat the olive oil in a large pan over medium high. Add the onion and a pinch of salt and pepper. Cook, stirring occasionally, until the onion begins to soften, about 3 minutes. Add the garlic cook 1 minute more.
  2. Add the cumin, oregano and cinnamon. Cook 1 minute. Add the beef and cook, breaking up with a fork or a wooden spoon until the meat is cooked through. Add the tomatoes and the olives. Cook 2 minutes.