If you thought food can be costly when traveling, wait til you start ordering drinks. But not all drinks have to be expensive - or alcoholic. (photos not included: tea shops in Taiwan serving 40+ varieties of thirst quenching teas, some with tapioca balls).
Or start the morning with Mexican chocolate (with milk or water) and bread. (Oaxaca Mexico)
A cheap yet healthy Chinese breakfast: Soymilk. To make it unhealthy, add an order of fried dough.
Free sausage liquor from the sausage tree. Must be able to climb tree unassisted while carrying own kill