This lentil shepherd's pie is a vegetarian twist on the classic dish. Made with lentils, vegetables, and mashed potatoes, this pie is both hearty and delicious. The lentils provide a good source of protein and fiber, while the vegetables add vitamins and minerals. The pie is easy to make and can be customized to your liking by adding different vegetables or spices. Serve it with a side salad for a satisfying meal.