"¿Cuál es el menú hoy?"
Translation:What's the menu today?
Any online dictionary will give you a good explanation and usage examples.
Most places I visit only have 1 menu. If it does vary, as at a cafeteria, I would ask What is on the menu for today.
This is a ready made phrase that we don't really have an equivalent of in English. El Menu is typically a set price for 3 courses and a drink with a choice of 3 or four dishes / items for each course. Sometimes it is referred to as Menu del Dia but is usually the short format. Hope that helps?
You mean sthg. like " Which is the menu today?" That is missing a subject, like in "Which [food/fish etc] is on the menu today?". Or alternatively by using which you would suggest there is different menus to choose from? I think, what menú means here isn't the dish, it is the list of dishes and there is rarely more than one.
Whats on the menu today. This should be correct. Its wrong. Instead you expect me to ask someone" whats the menu today?" The menu today is a list of the foods we serve here, just like it is every day.