One Bento, Side dish, and Snack recipe with Arugula, Beef stock, Brown sugar, Champignons, Chili powder, Dry yeast, Fruit jam, Mayonnaise, Tomato paste, Vanilla extract, and Vitelotte potatoes for Sugar-free diet

Cheese and mushroom casserole with chicken

This casserole is simple and delicious, and makes a perfect snack during a picnic (bento anyone?)—you should use it as a basic idea for a casserole, since the pasta sauce is the stable and the most important piece of the meal. It's also a very tweak-able recipe! :-)