Chicken Taco Casserole

Ingredients:
1 pckg small corn tortillas
3 tbl butter
1/2 cup chopped fresh mushrooms
3 tbl flour
1 cup milk
1 small jar green taco sauce, about 8 ounces
1 tbl chili powder
2 cups cooked, diced chicken
1 small can diced green chilis, 4 ounces
1 cup shredded cheddar cheese

Directions:
Cut or tear tortillas into bite size pieces, set aside. In sauce pan over low heat, melt butter and saute mushrooms. Remove shrooms, set aside. Add flour to melted butter and mix until smooth. Slowly add the milk, stir. Form a med-thick white sauce. Return shrooms to the sauce. Add taco sauce and chili powder to the mushroom sauce. In a large shallow casserole dish take a layer of tortilla peices. On top put a layer of the chicken top with diced chilis. Pour sauce evenely over the entire mix and top with cheese. Bake 350 for 1 hour.