So, I've been trying to slowly but steadily increase the number of things that I'm capable of eating because my wife and I are polar opposites in terms of food.
I'm super picky: I tend to find one thing per restaurant that is my "safe" thing to eat there, I've got a "safe" restaurant for each type of food (burger vs thai vs indian, etc), I can't stand anything mushy, you all know the drill. I spent a year and a half eating the same pesto chicken pasta diet frozen meal for lunch every day, before I suddenly couldn't stomach to eat it ever again.
My wife, on the other hand, is very much a "variety is the spice of life" kind of person. I suspect if she had the option to never eat the same meal again twice ever in her life, she'd probably take it. Every meal she cooks is at least a little bit different to any other time she's made it.
We both have trauma related to food and mealtimes, so we usually try to eat all of our meals together, even if we don't eat the exact same thing. I know she gets bored when we make similar meals too often, or eat from the same 3 restaurants over and over again, so I've been trying to learn to eat new foods. I even finally learned to like sushi recently!!!!
But one of her favorite foods is mexican foods (I think burritos specifically, but I'm not sure), and I have never in my life been able to tolerate mexican food. I've tried burritos, fajitas, tacos, quesadillas... I've had americanized tacos that are basically just a cheeseburger in taco form or simple cheese quesadillas. For some reason, every mexican dish I've ever had as had one (or both) of two problems:
1.) Too mushy. I hate beans, I hate when there is too much cheese, I hate salsa, I hate guac. There's a lot of bad textures in mexican food.
2.) A weird sour/bitter flavor that always reminds me of bile. If I try to keep eating after I taste, I tend to get really nauseous.
We've thought of ways to get around the texture issues, but no matter how much we brainstorm, we can't figure out what is causing me to get that taste in my mouth that tastes like bile. And my wife doesn't want to get mexican food if there's nothing that I will eat there, because she feels bad choosing food that I can't eat.
Does anyone have any idea what ingredient could be causing this taste? I love Thai and Indian foods (especially korma) which I think share a lot of spices with Mexican food? And most of the ingredients/spices that we have thought of are things my wife already uses in dishes that I like. It's not cilantro (which I do hate), because it's in things that would have no reason to have cilantro.
Or does anyone have any advice on how to get over the aversion otherwise?
Let me know if there's any more information or context that I can give in order to be helpful, and thank you in advance!!!
Edit: Thank you so much to everyone who responded with advice!!! I've gotten some great ideas of foods to focus on to try easing into Mexican food. It also sounds like the most likely culprit for the bad taste is either cumin, coriander, some kind of pepper, or lime juice. Or possibly a mix of the above. When we have some time, my wife and I plan to do a taste test of the various seasonings on rice to try to pinpoint it.
I very much appreciate all of your suggestions and words of encouragement!!!