Beef with Sour Cream

1 lb. lean beef round steak
¼ cup flour with dash salt, pepper and garlic powder
2 tbsp vegetable oil
¾ cup chopped onions
1 cup beef broth
½ tea thyme
1 can sliced mushroom with liquid
1 10oz frozen green peas
1/2 cup sour cream
3 to 4 cups hot cooked rice

Cut meat into strips.  Dredge in flour.   Using a large skillet, quickly brown meat on all sides in hot oil.  Add onions, broth, thyme and liquid from mushrooms.  Cover and simmer about 45 minutes or until tender.  Add mushrooms and peas.  Cover and cook 5 to 7 minutes.  Stir in sour cream.   Heat,  do not boil.  Garnish rice with pimiento if desired.