Cook the ground beef in a skillet, adding the taco seasoning as the meat cooks.
When the meat is cooked, add diced tomatoes and combine to combine.
Spray a 9×9 glass baking dish with cooking spray. Create a layer of tortilla chips, and top with the entire beef/tomato mixture. Add a new layer of tortilla chips and top with shredded cheese.
Bake the tacos for 10 minutes, until cheese, is melted.