I got to work in a second grade classroom recently with some sweet second grade kiddos. They were writing a personal narrative about a time they lost something. I wrote a grocery list story on the board (in black). We then talked about how to add to these sentences to improve them. We also discussed how to create a picture in your readers mind by add sentences with no action-just thoughts or feelings.
I think there are some kids in your room who are never going to come to you and say, "That Patricia Polacco book moved me deeply. The next time I write a personal narrative, I am going to use figurative language as beautifully as she did."
And you know what? That's perfectly fine. This is a great way to help kids work within the thinking framework they are comfortable with. If you've got grocery store list writers, how do you help them stretch?