Experts can still answer beginner-level questions and are often happy to do so (Stack Overflow has made this abundantly clear).
The important thing is not that the question is at an expert level, but that you're asking for an expert answer.
Certain questions - such as "I need a recipe for chicken wings" - do not appear to seek answers from experts in the cooking field. Nor do most questions about health/diet or "eating out" as somebody else brought up recently. Those kinds of questions can be answered by literally anyone; they're more along the lines of outsourcing research than they are about getting in touch with people in the know.
I think that all of us would like there to be a healthy number of expert-level questions, so that actual experts who visit the site will feel as though they themselves can get answers to their much more obscure/complex questions; but having a certain number of beginner-level questions is not only inevitable, it's a good thing. It greases the wheels of the site, keeps people sharp, and makes it possible for beginners to become experts over time.
So please, don't shy away from asking beginner questions; just stay on topic (please) and you will be fine!
(By the way, beginner questions are tagged accordingly on Trilogy sites as
beginner. On this site, we seem to have gravitated toward the
basic tag instead. If you feel that your question is very much at a beginner level, then please tag it