Mushroom Beef Stroganoff

1/2 K beef (I used chuck)
salt to taste
1 medium onion
6-8 mushrooms
2 T butter
2 T flour
1      g Sour Cream
2 1/2-3 cups Milk
1 pkg Noodles (any kind you like)
Salt and Pepper to even beef bullion to taste

Put water on to boil the noodles. (Some Expats use their filtered water to boil noodles, I haven't had any issues and just use the tap water for cooking noodles). Cut the beef into bite size pieces and salt to your liking. Slice onions and mushrooms. Brown meat with sliced onions.  Just before the meat is completely done add the sliced mushrooms, stir occasionally. Add noodles to boiling water and stir. Drain the fat from the meat. Mix the flour with the sour cream then when the meat is just cooked (don't want to over cook the meat) add the sour cream mixture and stir while pouring all of the milk (I have never measured the milk, I just add enough to make the amount of sauce that I want).  Once it is mixed let it sit a while on low heat and stir again when it starts to thicken. Remove from heat when at desired thickness. Add salt and pepper to taste, could also season with beef bullion.  Drain noodles and serve. Enjoy!