for / as breakfast

sandwiches for breakfast.
CJ

Yes. "For" is normal, but if you wish to stress that the situation is unusual, and something strange is being substituted, "as" would be appropriate, preferably with some context.

Since he was late, and nothing else was available, he grabbed a couple of dog biscuits as breakfast.

- A.

Hmmm. I'd still say grabbed ... dog biscuits for breakfast.

CJ

Thanks. Can I say,

She makes / does sandwiches for breakfast.

Yes, but the second version is extremely casual. (It means something like, "she does the routine of making and eating sandwiches for breakfast").

Let's do lunch.

He's been sitting there doing double shots of vodka for the last two hours.

(also colloquial) If you like, I'll do up some sandwiches for you. This can mean to eat here or

Thanks. I thought "makes sandwiches" is more casual. Actually, I'm wrong.

Thanks.