Chop the meat into mud, and tofu will be mashed (tofu can't be more than meat, and it really can't be shaped without flour and starch).
Put them in a pot and keep stirring. During this period, you can add an egg or a small amount of water (if the water content of tofu is high, you don't need to add water) and stir until the meatball stuffing becomes hard and no longer spreads.