Classic Mince and Cheese Pie

Ingredients

• 1 tsp dried thyme
• 500g beef mince
• 1 Tbsp oil
• 200g frozen peas, steamed to serve
• 2 Tbsp flour
• pepper
• tomato sauce to serve
• 1 carrot, grated
• 2 beef stock cubes dissolved in 2 cups water
• 1 onion, chopped
• 400g puff pastry
• 2 cloves garlic, crushed
• 2 Tbsp milk to brush
• 1 cup grated cheese
• 1 stick celery, chopped small