Simple Tip Calculator with JavaScript Console App
A couple of things to consider:


When dealing with a switch statement, if a case utilizes the return keyword then you do not need to also include a break. When the return is hit, no further code in that function will be reached.
You should handle unexpected inputs; for example, serviceQuality should account for non-numeric inputs, or a number that is not 1-5. Look into try/catch statements and using a default case on your switch.
Because you are not reusing headerMessage, this function is not really required.
Your variable names are fairly unintuitive; consider changing them so that it's more obvious what each thing is such as enterBill -> billAmount and enterOption -> serviceOption. It might be worth using those same names as the serviceQuality arguments too.