In a large pan, sweat the onion, leek, carrot and garlic in the splash of olive oil until softened. Add the mince, giving it a healthy stir to break it up. Add the tinned tomatoes, crushed in your hand—a subliminal gesture. Keep stirring and add the oatmeal, not so much that you end up with a porridge. Stir, add the Worcestershire sauce and red wine, then stir again. Take a view on the liquid content; if it seems a wee bit dry, add some stock. You are looking for a loose lava consistency. Check for seasoning.