Vegetarian Shepherd's Pie - twimii

Ingredients

• 6 - 8 large potatoes
• 150g Puy lentils
• 2 garlic cloves, halved
• 1 tablespoon mixed herbs
• 3 carrots
• 2 celery sticks
• 1 large onion
• 1 leek
• mushrooms
• 1 generous teaspoon Dijon mustard
• 1 teaspoon wholegrain mustard
• 2 - 3 tablespoons tamari sauce
• 2 tablespoons red wine vinegar
• good splash whole milk
• good slice butter
• 25g cheese (Cheddar or Gruyère), grated
• salt & pepper
• olive oil