A traditional tagine would be made in an unusually shaped earthenware dish that resembles an upside down funnel. This version can be made right in your slow cooker. I recommend searing the meat and sautéing the onion the night before if you want to throw this together in the morning before work. Leave it to simmer while you’re away and you’ll be greeted by the mouthwatering aroma of a Moroccan-inspired mix of spices.