Lentil shepherd's pie is a vegetarian twist on a classic comfort food. Start by sautéing onions, carrots, and celery in a pot until they are soft. Add in lentils, vegetable broth, and your favorite seasonings. Let the mixture simmer for about 30 minutes until the lentils are tender. Top with mashed potatoes and bake in the oven until the potatoes are golden brown.
