I want to drop a culinary class because it just seems like a waste of time. But I indicated on the common app that I am taking this class, and I have already submitted my applications. Will it look bad if I drop the class and inform the colleges that I did?
No, just let them know.
I don’t think any college will care about a culinary class. Still, I agree it is best to contact the colleges you have applied to and let them know of the change in schedule.