You may not know what a tian is, but if you’ve seen the movie Ratatouille, you’ll be familiar with a version of this presentation of vegetables sliced thinly, cooked and served in an elegant stack. The dish you see in the movie was created by Chef Thomas Keller (of The French Laundry, among other restaurants), who was a consultant for the movie. My version of those stacked vegetables is a little easier for younger or novice cooks to assemble, but once you’ve mastered it, you’re well on your way to creat- ing restaurant-worthy ratatouille! It’s important to choose vegetables that have a similar diameter so they stack evenly in the baking dish.