The Good News & Broccoli?

What is the Good News of Jesus and how does it change us? In trying to explain it to my 8 year old daughter after reading how a person's salvation comes by faith in Christ (from Paul's letter to the followers of Jesus in Rome) I said that the good news is that not only do we not have to try and keep the law in order to be saved but that God changes us from the inside out as a consequence of what he has done for us - and gives us new desires to follow him. Her answer was "does that mean I'll want to eat Broccoli"?