"I strongly suggest bringing in a restaurant consultant for a few months to help improve things. The investment could pay off within 9 to 12 months. The food I had was disappointing; even the ketchup tasted cheap, likely purchased from a local grocery store. I was glad I brought my own lunch, to be honest.
If you're going to serve chips, fry them in small batches and season them properly with salt. Use yellow corn tortillas. People are willing to pay for a good meal, even if it's just burritos and enchiladas, as long as it's done well. I appreciated that the owner asked me about my meal, but I regret that I didn't tell the full truth. I wish them all the best in the future."