Spray a lg skillet w/ cooking spray if using ground turkey. If using beef, you don't need the spray. Place over med-high heat.
Brown the turkey or beef. Add corn, diced tomatoes w/ the juices, tomato sauce and taco seasoning.
Bring to a boil. Reduce heat and simmer, uncovered 20 mins, stirring occasionally. Sprinkle w/ cheese, cook until cheese is melted. Arrange chips around edge of skillet and serve w/ sour cream and chips.