Oh my! Lunch break is in five minutes.
The katsudon I ate today during my lunch break was very delicious.
I'm gonna change into a yukata during the noon break.
Remember how you learned that 休み means "break?" When you take a break at noon it's your lunch break! Or, if you aren't hungry, it's a noon break instead.
The readings for this word are both kun'yomi readings. You learned them already, so you should be able to read this too!