In large bowl combine:
4 medium potatoes (peeled and cubed-smallish)
1 # raw hamburger
1 can corn
1 packet taco seasoning mix
Mix well and divide onto 4-6 12" foil squares (depending on how big you want them to be)
Bake at 450° for 35 minutes.
Open carefully and top with a sprinkle of cheese and a tsp. of sour cream. Uneaten packets make great leftovers or will freeze well.