Well, I have many favourite dishes) But the one which you can cook quickly is chicken with cream.
In fact, you don't need to buy the whole chicken and take troubles over its bones, different parts and so on. You just need some chicken fillet, salt, pepper and cream (or sour cream if you wish) in which you will roast it in the oven. It's tasty and you can cook it qickly) Moreover, you can add different seasonings to your taste.