This creamy, cozy, and bubbly Chicken Stuffing Casserole, topped with golden-brown stuffing, is a heartwarming dish you'll find yourself making repeatedly.
Cook the chicken. Place the chicken, onion, garlic, water, salt, and pepper in the basin of your Instant Pot. Close the Instant Pot and cook on high pressure for 12 minutes. Allow the pressure to naturally release for 10 minutes before releasing the rest manually.
Shred the chicken. Use a slotted spoon to transfer the chicken to a cutting board. You can discard the remaining juices/ingredients in the Instant Pot or save them as broth for another recipe. Shred the chicken with 2 forks.
To make the casserole
Prep. Preheat the oven to 375˚F and liberally grease a 9x13-inch baking pan with butter.
Make the stuffing topping. Pour the water into a saucepan and bring to a boil. Meanwhile, place the contents of both stuffing boxes into a large mixing bowl. Pour the melted butter over the stuffing, followed by the boiling water. Give everything a quick mix, and then allow the stuffing to stand for 7 to 10 minutes before fluffing with a fork.
Make the filling. While the stuffing is hydrating, melt the butter over medium heat in a large, heavy-bottomed skillet. Add the onions, season with salt, and sauté for 3 minutes or until translucent. Add the frozen veggies and sauté for a minute. Add the cream of chicken, cream of celery, sour cream, chicken stock, and pepper. Stir to combine. Allow the filling to simmer, stirring occasionally, for about 5 minutes before folding in the shredded chicken.
Assemble. Transfer the filling to the greased baking dish and top with the stuffing.
Bake. Bake for 45 to 50 minutes or until the stuffing is nice and golden brown on top.
Rest. Remove from the oven and let it rest for 10 minutes before serving.
Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.
Course: Dinner
Cuisine: American
Keyword: chicken and stuffing casserole, chicken stuffing casserole, stuffing casserole