This Homemade Queso Mac and Cheese takes classic comfort food to the next level—extra cheesy, ultra-creamy, and packed with bold Tex-Mex flavor! A rich, velvety sauce made with American cheese, sharp cheddar, and cream cheese coats every bite of tender pasta, while Rotel tomatoes and taco seasoning add a little kick. The crunchy tortilla chip topping makes this pure comfort food bliss.
Prep a 13 x 9 inch baking dish with cooking spray.
Cook the pasta in salted water according to package directions. Drain.
While the pasta cooks, melt the butter in a large Dutch oven over medium heat. Add the flour, and cook for 3 minutes.
Add the milk and bring to a simmer.
Add the American cheese, 4 ounces of the cheddar, and the cream cheese. Reduce the heat to low, and cook until the cheese melts. Stir in the tomatoes, taco seasoning, salt, and pepper.
Add the drained pasta to the cheese sauce and transfer to the prepared baking dish.
Top with the remain cheese and the tortilla chips.
Bake for 20 minutes. Allow to cool for 5 minutes, and serve warm.