A quick go-to dinner. Can be made with almost any meat. I often used ground. Works perfect for lettuce wraps. Try replacing the onion with thinly sliced fennel.
Optional: spice this thing up, with a dose of your favorite chili paste/sauce.
We found these during Happy Hour at Chiso's Grill in Bee Cave, Tx. W've since tweaked the recipe a bit. This recipe is just a starting point, add/remove anything you want (like more hot sauce if you're into that).