I did a cookbook project for Grades 4 and 5 when I student taught at the St. Columbanus School. It was a low fat cookbook combining the disciplines of Math, Language Arts (Writing and Reading), and Health. Yes, it was enjoyed by both the teachers and the students. Everyone enjoyed sharing a recipe and a low fat recipe.
My mom did an interdisciplinary project combining Music, Spanish and History. It's called Classical Music in the Spanish Class. The composers were Falla, Piazzolla, Turina, and Sarasate. The students really seemed to enjoy listening to these composers and learning about other historical events from that time period.
I also used to do a cookbook project with my 3rd and 4th graders. One additional thing we added was that the students had to write a reflection to accompany their recipe and that was also published in the book. Students could write about a time the recipe went wrong, their first memory of the dish, the family history behind it, etc. This used to be a gift that we would then give to the families. It was by far one of my favorite projects!
Thank you for your response. I really like your idea about having the students write a reflection about their recipe. I remember one Spanish boy having his dessert recipe passed down from his family. By using the family history connection you made it a memorable project for both you and your students!