Preheat your oven to 180°C (350°F). Line a baking tray with parchment paper.

Roll out the puff pastry on a lightly floured surface. If necessary, cut it into a size that fits your baking tray.

Spread ketchup, mayonnaise, and French mustard evenly over the puff pastry, leaving a small border around the edges.

Sprinkle the chopped bacon evenly over the sauced puff pastry.

Add the chopped green onions, followed by a generous layer of grated cheese.

Season with salt and black pepper to taste.

Fold over the edges of the pastry slightly to create a border. Brush the edges with the beaten egg to help them brown beautifully.

Place the prepared pastry on the lined baking tray.

Bake in the preheated oven for 30-35 minutes, or until the pastry is golden brown and crispy, and the cheese is melted and bubbly.

Allow the bake to cool for a few minutes before slicing. Serve warm and enjoy!