Hot Dog Casserole

Ingredients
2 pounds potatoes, peeled, roughly chopped
1.5 oz butter, chopped
3/4 cup milk
1 tablespoon olive oil
1 brown onion, sliced
1.5 pounds pork or beef chipolata hot dogs
1/4 cup tomato sauce
1/4 cup barbecue sauce
1 tablespoon Worcestershire sauce
1 1/4 oz French onion soupmix
1 tablespoon plain flour
1/2 cup grated tasty cheese

Directions:
Place potatoes in a saucepan and cover with cold water. Bring to the boil over high heat. Reduce heat to medium-low and simmer for 20 to 25 minutes or until tender. Drain. Return to pan. Add butter, milk and salt and pepper. Mash until smooth.
Preheat oven to 400 F. Heat oil in a deep frying pan over medium heat. Add onion and cook for 3 minutes or until tender. Add hot dogs and cook, stirring occasionally, for 3 minutes or until browned.Whisk tomato sauce, barbecue sauce, Worcestershire sauce, soupmix, flour and 3/4 cup water in a jug. Stir into hot dogs mixture and bring to the boil.
Spoon hot dogs mixture into an 8-cup capacity casserole. Top with potato. Sprinkle with cheese. Bake for 25 to 30 minutes or until cheese is golden. Serve.