This vegetarian Shepherd's Pie recipe is a comforting and filling dish that is perfect for a cozy night in. Made with lentils, vegetables, and mashed potatoes, this dish is packed with protein and fiber. The lentils are cooked with onions, garlic, and spices, giving them a rich and savory flavor. The mashed potatoes are made with butter and milk, but you can use a vegan alternative for a dairy-free option. This Shepherd's Pie can be served with a side of steamed vegetables for a complete meal.