Salisbury Steak Casserole Recipe

Name: Salisbury Steak Casserole Recipe
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 2 to 3 cups of prepared mashed potatoes; 1 10.5 ounce can of french onion soup; 1 1/2 pounds lean ground beef; 1/8 teaspoon black ground pepper; 1 10.5 ounce can cream of chicken; 1 packet of dry onion soup mix; 2 Tablespoon all purpose flour; 1/4 cup ketchup; 1/2 cup water; 2 Tablespoon Worcestershire sauce; 1 teaspoon mustard powder; 1 14.5 ounce can of french cut green beans, drained