So I asked about a meal when I checked in, and the agent didn't know. She suggested I ask at the gate, and I did. They used a tablet to communicate with the FA onboard, who said there would be something, but no one knew exactly what.

I had a choice between a lemon-pressed chicken or an arugula salad. I went with the chicken, and it was decent. There was definitely an oven onboard; the FA served warm nuts first, then the meal. Then he came around with warm chocolate chip cookies. Overall, it was a very nice meal.
He also did the snack basket at some point... A passenger behind me asked for gluten free, so he separated the snacks and let them select first. I can't remember anyone doing that before.
Overall it was a very good experience. Everyone, from the check-in agent, gate agents, FAs, etc all thanked me, mostly by name too.