thymless (and anyone else) in my part of the country, even though Catholics quit many of the lenten food restrictions when I was young, you'll find that lenten fish fries are very popular at both community organizations (i.e., Elks, Lions etc lodges) and restauraunts.
Luckily I live in a very tolerant community and we all celebrate all of our holidays. You're right GB, it says a lot for the web site that we can discuss it all. In my family, tourtiere with beets was eaten after midnight mass Christmas eve. That's when we opened presents, and my father played Christmas carols on his accordion. Easter was ham in my family, but in my husband's Easter was lamb and a braided crown of bread. Throwing away food was almost sacriligious, but that probably had more to do with having family elders who grew up in poverty. I don't practice any religion, but honor all. My mom cooked for GIs and we learned to respect all. My MIL cooked for exchange college students .... so he grew up in the same respectful tradition.
I, too, grew up a nomad. I guess my attitude is why just celebrate one holiday when you can celebrate them all.
Another traditional food with religious connotations is Chinese long-life noodles.