"stay in bed and breakfast apartments"
Most accommodations in Europe, especially in German speaking areas, include breakfast with the room, a few at an extra cost. The biggest exceptions are apartments (Ferienwongungen in German speaking areas), where a cooking area is included, thus they expect you to fix your own breakfast. Occasionally, you will find an apartment in the same building with non-cooking rooms that have an included breakfast, and there they will offer the possibility of breakfast, but that is not the norm. I did stay in an apartment a few years ago that had an optional Brötchendienst (roll service) - they delivered freshly baked rolls to our door first thing in the morning. We had sliced sausage and cheese, butter, and marmalade in the fridge to go with it.