Green bean chicken casserole

1 layer stuffing mix or seasoned croutons (I used stove top stuffing.Just use dry right out of the box)
1 can or pkg french style green beans
1 can mushroom pieces, drained
1 layer cooked, diced chicken (2 cups)
1 can each cream of mushroom soup and cream of chicken soup, mixed with 1 can milk
1 can (large) french fried onion rings

Put layers in a buttered casserole (13x9) in order listed, topping with mixture of 2 soups. Sprinkle onion rings over top. Heat 350 degrees 25-30 min