We did this too with the children (with guidance from their parents) submitting their favourite recipes. Just laminate and spiral bound. Divided into breakfast/lunch/dinner/snacks/vegetarian. The children also cooked some of the recipes at school so photos of them (and their complete dishes) were added.
We did one a couple of years ago, and raised around £2000. We had them professionally printed, but were able to offset the cost of the printing with advertising/grants/sponsorship so that any books we sold were profit. We included drawings and paintings by the children, and photos they'd taken at home alongside the recipes, which went down well. It was a huge amount of work though, as we did all the design and layout ourselves, and chasing people for recipes was pretty time consuming.
The PTA at our school did this. Kids Literacy homework one evening was to write out their favourite family recipe. That way there was plenty of material and since everyone's was published, most families wanted to buy a copy. The recipes were named, for example "joe Bloggs favourite chicken curry" or "Freds nanas cottage pie" so the children felt they had written it themselves. Was very successful.