Jalapeno popper chicken casserole is made extra easy in your ovenproof skillet! All of your favorite popper ingredients - but in a tasty chicken casserole. :) Make this extra spicy or only a little spicy. Either way, you will love this low carb keto jalapeno popper casserole. Creamy and delicious with chicken, sausage, peppers, onion, and ooey-gooey melty cheese! This is a healthy gluten free, low carb, no sugar added, keto casserole.