1-Making Mushroom And Lamb Shank Pot Pies starts with simple steps that lead to a delicious result. Begin by preheating your oven to 160˚C (140˚C fan-forced) to set the stage for tender meat. This method ensures everything cooks evenly and brings out the best flavors from the ingredients.

2-First, season the ¼ cup plain flour and coat the 4 large Frenched lamb shanks by tossing them in a bag, then shake off the excess for a light dusting. Heat 1 tablespoon of olive oil in a large ovenproof pan over medium-high heat and brown the lamb shanks until golden, which takes about 5 minutes, then set them aside. Next, add the remaining oil and cook the 1 finely chopped brown onion, 3 crushed garlic cloves, 2 sticks finely chopped celery, 2 medium diced carrots, 300g quartered button or Swiss Brown mushrooms, and 1 tablespoon finely chopped fresh rosemary leaves for 3-4 minutes until they soften.

3-Detailed Cooking Process: Stir in 2 tablespoons tomato paste and cook for 1 minute to deepen the flavors. Add 2 cups beef stock and the 400g can of diced tomatoes, bring everything to a boil, then return the lamb shanks to the pan. Cover and bake for 2 to 2 ½ hours until the lamb is tender and the sauce thickens nicely.

4-After baking, remove the lamb shanks, shred the meat from the bones, and mix it back into the mushroom mixture for a hearty filling. Spoon the mixture into four greased ovenproof dishes, each about 1½ cups capacity. Increase the oven to 190˚C fan-forced, defrost the 2 sheets of frozen butter puff pastry, cut four 11 cm rounds, place them over each dish, seal the edges with a fork, brush with the lightly beaten egg, and cut a small cross in the center.

5-Bake the pies on a lined tray for 25-30 minutes until the pastry is puffed and golden. Let them cool slightly before serving warm. This approach, with a total prep time of 35 minutes and cooking time around 3 hours and 15 minutes, works well for home cooks of all levels.