Here in Spain this is a bit of a thing. You can get a three course meal for a fixed price of around 12 euro. Usually about 3-4 choices for each course that change each day. Pretty much every restaurant does this.

Problem is it's only for lunch time and eating the big meal of the day at lunch doesn't work for me :( I end up being hungry at night and having 2 big meals. Whereas a small lunch doesn't bother me.