cook pasta

melt butter, stir in the flour and cook for 30 sec

gradually whisk in the milk to make a smooth white sauce

bring to boil and simmer for 1 to 2 minutes

remove from the heat and stir in the cheese until melted

put spinach in a saucepan, sprinkle with a little water and cook until tender (about 3 minutes)

squeeze out all the water

combine the spinach with the cheese sauce and puree in food mill

stir in the cooked pasta and corn into the spinach and cheese sauce