I don't like tacos, but I really liked this dish. I added chopped celery & green pepper after cooking the onions for a while (I like a crunch). I didn't have Velveta, so I used 2 chopped up slices of Cheddar and that was plenty of cheese. After cooking the meat, veggies, spices & cheese in a skillet, I put it all in in a serving dish, sprinkled it with the chopped tomatoes & the corn chips, then popped it in a 400 degree oven (preheated of course) for about 15 minutes. This heated up the tomatoes & chips and kept the chips crisp. It was a nice presentation at the table (my husband and kids actually oohed). We spooned it out like a caserole, and served it with a side of green beans. Thanks for the easy and fun recipe-- no leftovers at my house!