Returning to Engineering after doing something else

Hello my name is Catherine. I have a Masters in Engineering, and I've been out of the engineering field for a while-6 years. I have worked in project management and process. I left for personal reasons, and it was easy because at the time I did not enjoy the work. So I took a break and I switched to education as a life long dream to teach with the intention that I would go back to industry. But now its been six years, and although I constantly receive recruiter emails, none will touch my background because of the lag of engineering history. If someone has been out of the field for a while what do you suggest as a way to gain re-entry? Thanks. Catherine