Scrub potatoes clean and cook with enough water in a saucepan. Bring to the boil then reduce the heat and simmer until potatoes are tender. Peel and mash the potatoes. Add butter and hot milk then season to taste with salt and pepper.
Heat olive oil in a saucepan and fry onion until softened. Add minced beef, carrot and mushrooms. Cook for a while. Add fennel and bay leaves. Fry for a minute.
Add cornflour, tomato sauce, Worcestershire sauce and seasoning. Pour in wine. Cover and simmer for about 8-10 minutes or until gravy is reduced.
Spoon mixture into 3 ramekin bowls. Spread out the mixture and press down with a spoon. Top with mashed potato and smoothen the surface with the back of a spoon. Run a fork across to make patterns.
Bake in preheated oven at 200°C for about 20-25 minutes or until the top turns golden brown. Remove ramekins out and serve hot.