1. Preheat the oven to 180 degrees Celsius.

2. Brown the beef in a pan. Season with salt and pepper.

3. Cut the vegetables into small pieces and add them to the beef. Mix well and continue cooking until the vegetables are soft.

4. Roll out the pastry on a floured surface and place it in a round baking dish. Pull up the edges of the pastry.

5. Spread the beef and vegetable mixture evenly over the pastry.

6. Sprinkle cheese over the beef and vegetable mixture.

7. Bake the pastry in the preheated oven for 25-30 minutes, or until the pastry is golden brown and the cheese is melted.

8. Remove the pastry from the oven and let it cool slightly before serving.