Easy, quick, and delicious casserole using common ingredients.
Preheat oven to 350 degrees F (175 degrees C).
Bring water to a boil in a saucepan. Stir stuffing mix into the water, place a lid on the saucepan, and remove pan from heat. Let sit until the stuffing is thickened, about 5 minutes. Fluff stuffing with a fork.
Mix sauerkraut, chicken, Swiss cheese, and Cheddar cheese together in a large bowl. Stir enough French dressing into the sauerkraut mixture to moisten to your liking; spread into a casserole dish. Spread stuffing over the sauerkraut mixture.
Bake in the preheated oven until browned along the edges, about 25 minutes.
Per Serving: 904 calories; protein 54.9g; carbohydrates 50.6g; fat 53.6g; cholesterol 148.1mg; sodium 2435.4mg.