--FISH: Cooking delicate fish fillets can be challenging as they tend to overcook, so en papillote is an ideal cooking technique for delicate fish as it helps retain texture and moisture. En papillote is commonly used to prepare white fish varieties like cod, halibut, or tilapia. However, it can also be used to cook meatier fish such as flounder, snapper, and salmon with excellent results. --CHICKEN: Thinly sliced chicken breasts (also known as cutlets) work well. --VEGETABLES: En papillote works well for vegetables as the steam enhances their flavors without overcooking them. Vegetables such as zucchini, asparagus, peas, or mushrooms are perfect candidates for this cooking technique.