When ever I go through any drive-thru I do something for my own entertainment. I'll give them everything they need to know in one sentence. For example; “I'll have a #2, medium, with a diet coke and onion rings instead of fries”.
Guaranteed they will come back with, “would you like medium or large” to which I come back with; “I'll have a #2, medium, with a diet coke and onion rings instead of fries”.
Guaranteed they will then ask, what type of drink would you like” to which I again reply; “I'll have a #2, medium, with a diet coke and onion rings instead of fries”. Then, of coarse they will ask if I want regular or seasoned fries.
Try it....its very entertaining.