Mini Shepherd'S Pies

Ingredients

• 1 small brown onions (for Australians) or 1 small yellow onion, finely minced (for Americans)
• 2 -4 garlic cloves, minced
• 1 leek, thoroughly washed, finely chopped, use only the white and light green section, the coarse green sect (see Notes below)
• 1 -2 cup mushroom, finely sliced
• 800 g ground lamb or 25 1/2 ounces ground lamb
• 1/4 cup tomato paste (see note above)
• 400 g tomatoes, diced (just under 13oz)
• 1 -2 teaspoon lemon juice (optional ( if using drain the equivalent from the canned tomates)
• 1/4 cup pine nuts (optional)
• sea salt, to taste
• fresh ground black pepper, to taste
• 5 sheets shortcrust pastry
• 60 g unsalted butter, melted (2oz)
• fresh chives, finely chopped, to garnish
• POTATO TOPPING
• 470 -500 g leftover mashed potatoes (15oz-16oz)
• 1 egg yolk
• 1/2 cup parmesan cheese, finely grated
• sea salt, to taste
• fresh ground black pepper, to taste