A great way to use leftover chicken! I used grilled chicken that was leftover from a previous meal. I also used fresh veggies - onion, pepper, shredded carrot, green beans and tomatoes. This made the dish even healthier and added both flavor and texture. A little more work with the chopping, but if you have the time it's well worth it! Because my husband and I like really spicy food I increased the cumin and chili powder by 1/2 tsp each. We were out of cheddar cheese so I used a Mexican blend;I don't think it made any real difference. I will definitely be making this again!