Jamie Oliver Steak and Mushroom Pie is a traditional British savoury pie made with slow-cooked beef chunks and mushrooms in a thick gravy, topped or encased in pastry and baked until golden. The filling is simmered gently to develop flavour before being baked inside crisp pastry.
Heat olive oil in a large heavy-based pot over medium heat. Add beef chunks in batches and brown on all sides. Remove and set aside.
In the same pot, add chopped onion and cook for 4–5 minutes until soft. Stir in mushrooms and cook until lightly golden.
Sprinkle flour over the mixture and stir well. Cook for 1–2 minutes to remove the raw flour taste.
Return the beef to the pot. Pour in beef stock and Worcestershire sauce. Add thyme, salt, and pepper. Stir well.
Cover and simmer on low heat for 1 hour to 1 hour 15 minutes until the beef is tender and the gravy thick.
Remove from heat and allow the filling to cool completely before assembling the pie.
Preheat oven to 200°C (180°C fan). Line a pie dish with shortcrust pastry. Spoon in the cooled filling evenly.
Cover with puff pastry. Trim edges and press to seal. Cut small slits on top to allow steam to escape.
Brush with beaten egg and bake for 30–35 minutes until golden and crisp.
Allow the pie to rest for 10 minutes before slicing.
Find it online: https://jamieolivereats.uk/jamie-oliver-steak-and-mushroom-pie/