Put entire bag of Doritos in crockpot and then crush them and add the 2lbs of hamburger and put on top evenly over the crushed Doritos and then add the taco seasoning (or Cajun seasoning) add the bag of frozen corn and spread over the top evenly put in both cans of tomatoes and again spread over the top evenly add the nacho cheese covering the top and flatten the cheese out all over the top and then add a little bit more taco or Cajun seasoning of ur choice on top and then add the Mexican cheese all over the top and flatten it out and put the lid on and set crock pot on high and let cook for 2hrs then serve