I don't know what you mean. Is it because you are on a diet or because you have some taboos and are not suitable for eating beef? If not, you can eat anything for breakfast. There is no fixed number, just like some places get up early to eat stir-fry, some have noodles, some eat in disorder, some have tea and some drink soy milk, it doesn't matter. Just local habits and personal habits. I always eat whatever I want. . . .