I've been meaning to post about this for the past few days.
The Demon Llama helped me to plant my herb pot this year. When he walks past the plants and we mention they are growing, and it's because of he and his sister's work, he sometimes cheers and tells his plants hello.
He also had the first of his basil the other day and did an "I did it" dance when I mentioned he and his sister helped grow what he was eating. It was adorable on every level.
I'm going to have them help with my tomato plant, radishes, and carrots too since this month conspired against me and it looks like I am only getting a patio garden instead of the usual. It seems to be something they both get a kick out of and it's a pretty big point of pride for both of them to be able to make dinner with *their* food.