"What is for dinner mom?" I hate that, because most of the time I don't know myself. So here is a little trick I worked up for my sanity.
You will have to purchase only one thing, or spin this idea off and make do with what you have.
First you will need a pack of magnet printing paper, I got mine at Staples a number of years ago and had one sheet left just for this project.
Next type up your favorite dinner, breakfast and lunch foods spelled out separately. Print out your sheet and cut each word into a strip then you can put them on your refrigerator and arrange them in groups.