My husband's love for chili runs deep. Any recipe that has peppers, onions, ground meat and a tomato sauce base is right up his alley. I like to add a little italian flair to it: mozzarella, garlic marinara sauce, italian seasoning. But at that point, is it still chili? Either way, this Gluten Free Chicken Casserole With Tomato Sauce is perfect for a 30-minute weeknight dinner.This recipe is one of our favorites because you basically throw all the ingredients in one pan together, cook it up and its easy to clean up! I also love a gluten free casserole where extra veggies can be hidden!