Beef Paprikash Casserole

2 Tablespoons oil
1 1/2 pound beef, cut into 1 1/4 inch cubes
2 large onions, thinly sliced
1 12 ounce package mushrooms, cut in half
2 Tablespoons paprika
1 Tablespoon flour
1 1/2 teaspoon salt
1/2 cup sour cream
1 1/2 cup water (or half water and half beef broth)

Brown beef in oil in a 5 qt dutch oven until well browned.  Remove beef and brown onions and mushrooms.  Stir in paprika; cook one minute.  Stir in flour and salt. Add beef back in, stir, and add water or broth.  Transfer to a casserole dish.  Cover and bake at 350 for 1 1/4 hours or until beef is fork tender, stirring once halfway through.  When meat is done, stir in sour cream.  Serve with mashed potatoes, rice, noodles, or dumplings.

*Sauce may need to be thickened a little more once meat is done.