talvez ajude:Ordering Food in a Restauranthttp://esl.about.com/library/beginner/blwouldlike.htm
One of the most important tasks in English is ordering food when you go to a restaurant. There are basic forms and questions, as well food vocabulary that you can use in places where people speak English.
Read this dialogue
Waiter: Hello, Can I help you?
Kim: Yes, I'd like to have some lunch.
Waiter: Would you like a starter?
Kim: Yes, I'd like a bowl of chicken soup, please.
Waiter: And what would you like for a main course?
Kim: I'd like a grilled cheese sandwich.
Waiter: Would you like anything to drink?
Kim: Yes, I'd like a glass of Coke, please.
Waiter... After Kim has her lunch.: Can I bring you anything else?
Kim: No thank you. Just the bill.
Kim:I don't have my glasses. How much is the lunch?
Waiter: That's $6.75.
Kim: Here you are. Thank you very much.
Waiter: You're welcome. Have a good day.
Kim: Thank you, the same to you.
Notice how the waiter asks: What would you like? and Kim responds: I'd like ...
"Would like" is the polite form used when asking and requesting.
No link dado acima tem exercícios e outros "related articles" no final da página.
Outro link interessante: http://www.englishpage.com/vocabulary/i ... sson4.html
Outra dica: acesse o Youtube, digite 'in the restaurant" or "in a restaurant" e assista aos exemplos.
Espero ter ajudado.