We gave uber-creamy mac and cheese a Southwest kick by adding tortilla chips, green chiles, and homemade taco seasoning. Yes, it’s great for a weeknight, but it’s also festive enough to serve at a party. If you want to take this dish to an even spicier place, add some jalapeños or throw in a pinch more seasoning. To make it a complete meal, add some chopped bell peppers and onions, or fold in chicken or beef. Use whatever tortilla chips you have on hand, be it scoops, blue corn, or restaurant style. The idea here is just to add some salty crunch.