My daughters love the movie also. Every line is memorized by heart. Weeks ago, my eldest daughter asked me to prepare the dish Ratatouille. I was stumped. So there I was, firing up Google and hope I find the recipe for the dish. Good thing, my favorite blogs, Elise and Cooking for Engineers have the recipe. I printed both version and found that the dish has to be baked, which irritated me because I did not have an oven here. But at any rate, I think the dish can be prepared without the baking part and I found a recipe that did not require baking, courtesy of Provence Beyond.
Honestly, I doubt if the children would eat the dish because of the zucchini and eggplants, but I cannot guarantee everything, can I?