Roast Beef without iceberg margarine

2 lbs pot roast 1 1/2 cups southern style hash browns 2 tablespoons instant minced onion 1 can corn 3 teaspoons Worcestershire sauce 4 cups water 1 teaspoon[...]

3 cups cubed cooked potatoes 1 teaspoon vegetable oil 2 cups cubed leftover roast beef 1 cup sliced cooked carrot (optional) 1 (10 ounce) can roast beef gravy[...]