This is what is considered fast food in Barcelona I guess. If you sit outside on the patio and they serve you, a premium price is added to the food. Otherwise you choose your product from the refrigerated wall - soups, salads, "hot" dishes. Once you pay for your food item, you can take it to the back and microwave it yourself.
I am not sure I am a big fan of a place such as this but I am not a local and would rather have an authentic fresh meal on my vacation rather than warming something up in the microwave (although some restaurants might do this behind the scenes anyway). read more