Those quesadillas sound awesome. I would have never thought to put kimchi in a quesadilla.
Not exactly Texmex but I make these a lot, tacos dorados with cabbage salad.
I sauté some chicken with salt and pepper in a little olive oil, then shred it. Then take some corn tortillas and dip them in a pan of hot oil for a few seconds to make them more malleable, put the shredded chicken inside the tortillas and fold, then use toothpicks to keep them sealed shut. Fry the tacos in canola oil until crispy.
For the red sauce I use a can of tomatoes, about 8-9 red jalapeños, a couple cloves of garlic (browned in oil first), and a splash of vinegar and blend them.
The cabbage salad is shredded white cabbage, chopped red onion, chopped cilantro, salt and pepper, white vinegar, and some of the red sauce, all mixed thoroughly. The lame grocery store I went to didn't have just shredded cabbage and I didn't feel like shredding one myself, nor do I need much cabbage, so I got the cole slaw mix and picked most of the carrots out. So that's why you see carrots in the picture, but they normally wouldn't be there.
For serving I remove the toothpicks, put a layer of red sauce on the chicken, then a layer of the cabbage salad, and then some crumbled queso fresco.
Apparently I didn't get a picture of an assembled taco so use your imagination.
And ignore the guacamole the avocados weren't completely ripe so I had to blend it so it looks like green poop.