Bring salted water to boil, add in macaroni, stirring occasionally, turn down heat to medium and cook macaroni until tender and water almost all gone, dont forget to stir now and then.

Pour in cream of mushroom and add in a can of water, measured using the can of cream o mushroom, stir well

Cook until it boils again then add in beaten egg(s)

Adjust flavor

Serve immediately is best, while served room temperature would make the texture like mac n cheese