Chicken Mushroom Wild Rice Casserole

I made up this recipe for my Garden Club Auction. I am not usually a casserole girl because I refuse to use cream of anything canned soup in my cooking. My co-hostess Carolyn convinced me to make a casserole so I did it the hard way, by making my own soup first. The other thing I don’t like about casseroles is when ingredients turn to mush because they have been over cooked. I think I solved that problem by basically cooking all the parts separately and just assembling them into one dish and reheating.
I had a bunch of requests for the recipe so I made sure to write it down before I totally forget how it made it.

12 oz. mushrooms sliced

2 large onions chopped

8 boneless skinless chicken thighs

3 T. Butter

2 T. Flour

1 1/2 cups whole milk

1 cup cream

2 T. Thyme

2 T. Knorr chicken broth powder

1 T. Garlic powder 

Salt and pepper

1 cup sour cream

1 cup uncooked wild rice

2 cups uncooked white rice

4 stalks of celery chopped
2 cups Fresh made Bread crumbs

1/2 cup Parmesan cheese

2 T. Melted butter
Cook the wild rice according to the directions. Let cool

Cook the white rice according to directions. Let cool
Spray Pam in a big fry pan and cook the mushrooms until brown. Never salt mushrooms until they are cooked. Salt and pepper- set aside.

Add the onions and cook until just brown, salt and pepper- set aside.

Chop the chicken into bite sized pieces and cook in the fry pan, sprinkle with garlic, salt and pepper while cooking and thyme after done.  

Put the mushrooms, onions and chicken in a big stock pot. Sprinkle with knorr chicken powder and add 1 1/2 cups of water and heat.
In a small sauce pan melt the butter and add the flour and cook for two minutes on medium high heat, stirring with a whisk. Add the milk a little at a time whisking the whole time. It will be thick like a sauce. Add the cream. Mix together with the mushroom chicken mixture. This will make a cream soup. Take off the heat and let cool a little. Add the two rices and the celery and put I a buttered casserole dish.  
Mix the bread crumbs and the melted butter together, add the cheese. Sprinkle on top of the casserole.
Bake at 350 for 45 mins until hot.