2. Add yeast, oil, salt and sugar to the flour, mix the flour with warm boiled water until it doesn't touch your hands, put it in a basin, cover it with plastic wrap and ferment for several hours. While waiting, wash the green pepper and onion, cut them into pieces and shreds, drain the water together with the cucumber and carrot slices (it must be drained sufficiently, otherwise the pizza will become watery), and slice the ham.
3. When the dough becomes fat and soft to the touch, stick it into a cake. Spread a layer of butter on the pizza plate, put the bread in, and make it thicker around. Punch many small holes in the bread with a toothpick.
4. Spread tomato sauce, a small amount of mozzarella and black pepper on the bread (according to personal taste). Then, put all the raw materials on it. You can also choose the raw materials according to your own preferences. Finally, sprinkle a thick layer of mozzarella.
5. preheat the oven, put the plate in, bake at 22 degrees for 15 minutes, and then take it out and eat.