Hi there,
Thanks for your background. MBAs bring lots of opportunities to all sorts of backgrounds. Granted, yours is a nontraditional one, but one that we can still build a great story around. To answer your question, common functional roles out of an MBA program include marketing managers, corporate strategists, roles in HR, operations managers, entrepreneurs, and many more. These jobs exist across all industries including healthcare, life sciences, energy and utilities, travel and transportation, retail, media, and entertainment just to name a few.
One thing I recommend is for you to take the time to reflect on your goals and think about what it is you want to do. So put on a pot of joe, do some research, and see where you see yourself in a few years. Best of luck with your planning!