French onion soup may be pretty simple, but there’s something so special about that combination of flavors. The way the onions become sweet and lose all their sharpness, the contrast of the beef stock with the nutty Swiss cheese… We absolutely adore it. But since it can’t be all soup all the time, we’ve taken that fantastic flavor combo and converted it into casserole form. And, oh boy, is it a winner! All of those flavors we love with the addition of comforting pasta and hearty chicken… it’s a weeknight dinner you’ll keep coming back to.