Hamburger Casserole Pie-Lori

1 1/2 pounds ground beef

1/2 cup chopped onions

1/3 cup water

1 teaspoon salt

1/4 teaspoon pepper

3 tablespoons butter or margarine

1 (16oz.) can green beans

1 can tomato soup

2 eggs

1 3/4 cups boiling water

2/3 cup milk

1 package softened Betty Crocker Sour Cream and Chives or Mild Cheddar with Onion Twice Baked Potatoes

Heat oven to 400 degrees. Cook and stir ground beef and onion in 10 inch skillet until beef is browned; drain. Stir in water, salt, pepper, beans and soup. Pour into ungreased 2 1/2 to 3 quart casserole dish. Beat eggs slightly in medium bowl. Mix water, milk and margarine. Stir in potato and seasoning mix with fork. Pour over beef mixture, then bake, uncovered, until center is set, 20 to 25 minutes. Sprinkle with topping. Bake, uncovered, until brown, 8 to 10 minutes longer. Let stand a few minutes before serving. Garnish with tomatoes if desired. Makes 5 to 6 servings.