1. Cook potatoes, sweet potatoes and garlic in a large saucepan of boiling water, until tender. Drain well. Mash with hot milk and season with salt and pepper.

2. Heat oil in a large, deep, non-stick skillet, on medium heat. Add onion and carrot and cook gently for 5 to 8 minutes, or until tender. Add peas, corn, and turkey to the skillet and heat thoroughly. Add tomato sauce and ketchup, then bring to a boil. Stir in Worcestershire, soy, and hot pepper sauces.

3. Place turkey mixture in a lightly oiled 8-inch square baking dish. Spread with mashed potatoes. Place on a large baking sheet and bake in a preheated 350F oven for 30 to 40 minutes, or until very hot and crusty on top.