I love thanksgiving, especially the food that comes after the meal. talking about leftovers- they are great! This casserole has all of that in it! Well except the Turkey. You could use turkey but chicken plays a great substitute! Just add the cranberry sauce and you are all set! Don't forget the pumpkin pie for later!
On 350 degrees, cook chicken breast for 20-25 minutes until cook through. Cool and cut into cubes then mix chicken cubes and chicken soup in same bowl. Cook the stuffing and vegetables. Mix together the green beans, mushrooms, mushroom soup, and half of the onions. Put each component (chicken mixture, stuffing, and green beans mixture) in separate bowls.
Preheat the oven for 425. Butter a 9x13 dish then press the stuffing down into the dish. Layer the chicken mixture on top of the stuffing. Put the green bean mixture on top of the chicken. Add foil and bake in oven for 45 minutes.
Take off the foil and add the rest of the french fried onions on top. Cook in oven for 5-7 minutes. After, let the casserole stand for 10 minutes to set and enjoy!