In large bowl add soup and milk. Mix together. Next add the 2 cans of chicken ( drained) and mushrooms ( drained) and green chiles ( not drained). Mix well. Add salt and pepper to your taste. Add the frozen broccoli. Stir up until well mixed.
Place in 9 X 13 pan ( sprayed with non-stick spray of choice) Crumble up Ritz crackers and sprinkle on top. Melt stick of butter and pour over crackers.
Place in pre heated oven at 350 and bake for 40 mins. Uncovered. While this is cooking, cook your pasta of choice. Casserole will be slightly runny when done that is why we used the noodles.