Preheat oven to 356°F (180°C).
Slice mushroom, sausage, green bell pepper, and onion into pieces. Set aside.
Mix the tomato sauce, bolognese sauce, and italian herbs together until well combined.
Spread the sauce mixture over the entire surface of the puff pastry, then add sausage slice, mushroom, green bell pepper, and onion. Sprinkle mozzarella cheese on top, then roll the pastry.
Cut into several pieces, then place them into a baking cup and bake for 30 minutes.
Enjoy!