In casserole dish, layer alternately:

1 1/3 c. instant rice, cooked
1 can French style green beans, drained
1 c. cooked ham, cut into sm. pieces

Add 1 1/3 cups milk to 1 can cream of mushroom soup. Stir in 1/4 teaspoon black pepper and 1 tablespoon prepared mustard. Pour this mixture over casserole. Bake at 350 degrees for 20 minutes.