There are two types of breakfast in Taiwan: Western and Chinese. Western breakfast is popular among young people and are sold on main streets while Chinese breakfast is more popular with older people and is sold in side streets and alleys.
Western breakfast: Sandwiches, always cut triangularly, very white bread, no crust. It is often three slices of bread. Ingredients often include this like ham, fried chicken, egg, and 肉鬆 (the best I can describe it is meat powder). Very few sammiches have vegetables.
Chinese breakfast: Soymilk, stuffed buns, 饅頭 (buns without stuffing), dumplings, 蛋餅 (translates to egg wrap, basically egg and your choice of meat filling (often tuna) wrapped in an crepe-like pancake). I like Chinese breakfasts because it is warm (sandwiches aren’t) and I can drink soy milk (I am lactose intolerant).
One cool thing that I slowly realized eating breakfast here is that the soy sauce is almost always soy sauce paste. It is thicker and easier to dip into because it sticks better than watery soy sauce.
I drink soy milk every morning instead of milk or coffee because I am lactose intolerant, as I mentioned before. Soy milk at a breakfast shop always comes in a paper cup with a plastic covering like the ones on bubble tea. People here don’t usually drink cold soy milk, and I get mine warm.