Whats for Lunch?

This seems to be trouble for me. I plan my dinner menus monthly, I can make a pretty mean breakfast, but when it comes to lunch I draw a blank. My husband comes home for lunch everyday, and a few times a week I run out for takeout, which adds up really fast. I’ve been trying to get creative with items that I can keep stocked in the freezer for a quick and inexpensive meal, but I could use a little help. Any suggestions to get me out of my lunch funk would be greatly appreciated.