Cook your egg noodles according to package directions. While they are cooking, begin the stroganoff recipe below.
Heat up your olive oil in a large skillet. Add your onion and garlic. Sauté for about a minute.
Season your beef chunks with the onion salt, salt, and pepper. Add the seasoned beef to the onions and garlic.
In a separate pan, melt the butter. Add your flour and bring to a light boil. Slowly whisk in your milk.
Let this mixture thicken on medium heat just a little. Once thickened, reduce heat to a simmer and add the sour cream and nutmeg. Add the meat concoction to the sauce and mix well.
Serve over egg noodles