There's actually no such language as "Creole". The word creole refers to a type of language that results from the combination of two completely different parent languages. There are more than 100 different creolized languages in the world, so you would have to specify which one you're talking about.
If you're not sure, here is a list of the most commonly spoken Creoles in the world (one of them is even an official language):
"Bonaniversè" is how you would say Happy Birthday in Louisiana Creole French.
jwayé zanivèsè / bon anivèsè
filiz cumplea
happy birthday
How to say happy birthday in tibetan
Joyeuses fetes
Happy Early Birthday! Or..... If there birthday is in a week, you could say.... Happy "ONE WEEK" before your birthday!
happy birthday
Happy birthday to ______ Happy birthday to you!
How do you say Happy Birthday in haida language
Belize's official language is English, so you don't say it any different than how you normally say it. HAPPY BIRTHDAY.
happy birthday