Beef - With pasta

1 lb stewing beef , cut into 1 inch cubes. (or 1 lb sirloin steak cut up) 1 medium onion , chopped 4 small mushrooms , sliced 1 tablespoon butter or 1[...]

2 tablespoons flour 1/2 teaspoon garlic salt 1/2 lb sliced beef liver , cut into 1-inch pieces 1 tablespoon oil 1 (8 ounce) can tomato sauce 1 green pepper ,[...]