I really hate store bought enchilada sauce. I am always disappointed it seems....
This is my favorite for cheese or beef enchiladas but I'll mix it up. It's Tex Mex, and old school technique. It's really, really good.
The standard chile paste the recipe calls for I also attached. The cookbook it is out of has numerous recipes using that standard chile paste but I suspect you might could substitute a store bought one. But, homemade chili paste is very easy and is a game changer.