Charlie’s Tacos Taste-Alike??

I was a brat in Okinawa in the 90s, and still can't stop thinking about Charlie's Tacos. Does anybody have a decent taste-alike recipe to recreate the ground beef tacos there? And I do mean the tacos with the weirdly unique tortilla and everything, NOT taco rice.

Thank you in advance for any suggestions, and if you have no idea what I'm talking about, do yourself a favor and get down there, they're still around 🙂

by ellienation