Preheat oven to 350 degrees. Coat a 9” square pan with cooking spray.
In a large bowl, combine cottage cheese, chicken, corn, and green chilies.
Spread pasta sauce on bottom of pan.
Arrange 2 tortillas (8 pieces) on top of pasta sauce
Remove the beans from a can, place in a small bowl, and soften in the microwave for easy spreading. Spread the refried beans evenly on the tortillas.
Arrange 2 more tortillas (8 pieces) over beans.
Spread cheese mixture evenly over the tortillas.
Cover pan with foil and bake for 30 minutes.
Remove from oven and place the last cut tortillas on top of casserole.
Spread the salsa evenly over tortillas. Sprinkle cheddar cheese evenly on top.
Cover casserole and bake 15 minutes longer. Cool slightly and cut into 6 slices.