Saute the ground beef and pork on Normal
Add the onions and cook until tender but do not brown the onions
Add the uncooked noodles sugar, salt and Worcestershire sauce along with the cans of tomato soup plus one can filled with water to the Instant Pot.
Seal the Instant Pot and set to Manual using High Pressure for 5 minutes.
Preheat the oven to 350° F.
When the time is up, do a Quick Release.
Open up the Instant Pot and add the cream cheese.
Combine the corn flakes with the butter in a small bowl.
Transfer the noodleburg into a greased casserole dish and top with the corn flake mixture.
Bake for 25 to 30 minutes at 350° F.