You can write precisely about that. That you eat little and have no favorite food. It's a topic to read, I look forward to your post.

I hope that some of those you have invited will agree to come. I also invite @Ronnie10.

You can write about anything you think you can say about a favorite food. Do you have it, don't you have it, do you know someone who does and want to talk about it? No excuses, your creativity is the limit.