STEP TWO: CREATE BASE LAYER
Layer four tortillas in the bottom of a casserole dish. Add half of pork mixture; then add the corn mixture.
STEP THREE: ADD SECOND LAYER
Spoon half of the sour cream and enchilada sauce on top; add 1/2 cup shredded cheese. Add four more tortillas and add one more layer of pork, corn- and chile-mixture, sour cream, enchilada sauce and cheese.
STEP FOUR: FINISH WITH CHEESE
Add remaining tortillas to top of casserole; sprinkle with the rest of the cheese.