Here's a very simple recipe for those nights when you don't have a lot of time and don't want to do a lot of cleanup because it all goes into one dish.
4-6 Chicken Breasts
1 stick butter (melted)
1 packet italian dressing mix
Arrange the chicken, potatoes, and green beans in a 9x13 baking dish and sprinkle with the italian dressing mix and then top with the melted butter. Cover with foil and bake in a 350 degree oven for 1 hour.