What are some fun (and easy) new recipes to try?

I do a lot of cooking at my house (my parents both work crazy hours and I want them to relax) My issue is that I get tired of cooking the same stuff.. mexican food, spaghetti, different stews / soups, meatloaf etc. Does anyone have an easy recipes for me to try? Pretty much open to anything.. I make a lot of stuff with chicken and ground beef. Thanks. :)