Fix the dinner: is it right?

Teachers should never understimate students because they always have important previous knowledge. Today morning I got one more evidence about this statement.

Mr. Sidnei, one of my English students, built a good sentence using the verb "to fix" in the sense of  "to prepare" in the simple past tense. I have never used this meaning so I considered it at least strange. However, I told him I would look for that meaning later.

Dear Mr. Sidnei, you were right about using the verb to fix in that sense. Check the explanation I have got on thefreedictionary.

Fix:
To make ready; prepare:

"fixed the room for the guests";
"fix lunch for the kids";
"fixed himself a milkshak"

Thanks for helping me to get another view about this matter as well as for let me not forget that teachers don't know everything!

A big hug!