Sausage and Onion Mash Pie

Ingredients

• Sausage & Gravy
• / 800g Pork Sausages
• / 750ml Beef Stock
• / 125ml Red Wine
• / 400g Onion peeled & sliced into strips
• Plain Flour
• Butter
• Worcestershire Sauce
• Dried Thyme
• Salt & Black Pepper, to taste
• Olive Oil, as needed
• Mashed Potato
• ⅖ / 2kg White Potatoes, peeled & diced into chunks
• / 150g Cheddar, grated
• / 125ml Milk or Cream
• heaped tbsp Dijon Mustard
• Salt & Black Pepper to taste