Brown and drain ground beef and onion in a very large skillet or chicken fryer. Do NOT add salt to this, you will get plenty with the olive brine. While that's browning, make the ENTIRE bag of egg noodles according to directions and drain them.
Add all three cans of soup to the beef and stir until well blended. Now add in the whole jar of olives, BRINE INCLUDED.
Once that's all mixed together, fold in the cooked noodles and let simmer until the whole thing is hot. Eat with a slice of buttered bread