1. Except butter, knead other materials into a smooth dough, add butter, and continue kneading until the gluten is expanded and fermented to two or three times the size.
2. Put the fermented dough in the middle on a tarp and roll it out into a rectangle no larger than the size of the baking pan.
3. After fermentation for another 30 minutes, it is ready to roast. Spread a layer of tomato sauce first.
4. Sprinkle a layer of mozzarella cheese on the tomato sauce.
5. Sprinkle another layer of mushrooms.
6. Place another layer of bacon slices.
7. Finally, sprinkle another layer of mozzarella cheese on top.
8. Preheat the oven at 190 degrees, middle and lower, and bake for 10-15 minutes.
9. Out of the oven, scent, the whole room is full of scents.
