As a lover of fine Mexican cuisine for 60 plus years all I can say is it’s not what you eat but where you eat. Eat a meal at any chain restaurant is a gamble. I’ve eaten at dang near all the Mom and Pop restaurants in West TX and New Mexico over the years. Never a problem and never a bad meal.
Ive eaten at a ton of roadside taco joints in the fields of Mexico where the chop the meat on a wood stump and cook it in an old Mack truck hubcap
The main thing is go where the people go.