There are a ton of different chicken and orzo casseroles to be found on the Web. You can go lighter, tossing chicken and orzo with a zesty dressing along with cherry tomatoes, or you can use a tomato sauce base, making it more of a traditional pasta dish. This recipe however, is neither of those.
This casserole is kind of chicken noodle soup meets chicken pot pie, but it puts a twist on it by adding Dijon mustard and capers. And it's those capers that really makes this dish something special. But the fact that it's stuffed full of veggies and smothered in a cream sauce doesn't hurt either.