1cupsoy milk or other unsweetened plant milk (optional)
1.5tsp salt
1lemon, juiced(gives the tanginess of sour cream)
Filling
1cupbrown lentils, uncooked
1onion
4clovesgarlic
3stalkscelery
4largecarrots
8ozmushrooms (or green beans, or other vegetable of choice)
1/2tspeach of rosemary, thyme, basil
2TBSPketchup or tomato paste
1cupvegetable broth
1.5tspsalt
1/2tsppepper
2cupsfrozen peas
Instructions
Cook lentils and make mashed potatoes
Start by cooking the lentils. Add 2.5 cups water and 1 cup lentils to a small pot with a lid. Bring water to a boil, then reduce to a low simmer for about 25 minutes, or until lentils are soft. Drain any excess water.
Meanwhile, peel potatoes and either cook in an instant pot or on the stove. For the instant pot, cover with water and use the steam setting for 13 minutes. On the stove, add potatoes to a pot of boiling water, and cook until tender, at least 20 minutes. Drain. Reserve 1 cup of potato water if you don't plan to use milk as the liquid for the mashed potatoes.
Finish mashed potatoes by adding 1 cup of soy milk or reserved potato water, salt and lemon juice. Mash with a potato masher or an electric beater. Adjust seasonings and salt accoring to taste. Add whatever you love to make your mashed potatoes swoon-worthy.
Make the filling
Chop onion, mince garlic, dice celery, slice the carrots and mushrooms.
In a large pot, saute onions. Add small amounts of water if necessary to avoid sticking to the pan. Once fragrant, add garlic, celery, mushrooms, carrots, and herbs. Cook over medium heat until soft.
Make the gravy by stirring the vegetable broth and ketchup together in a small bowl or liquid measuring cup. Add about 1 cup of the mashed potatoes to thicken it. Stir into the vegetable mixture. Add the cooked lentils, peas, salt and pepper. Taste and adjust salt and pepper if needed.
Pour lentil vegetable mixture into the bottom of a 13x9 inch pan. Dollop spoonfulls of mashed potatoes on top, then gently smooth them together to cover the filling. Sprinkle with parsely if desired, then bake at 400 degrees for 20 minutes, or until filling is hot and bubbly and potatoes are golden brown on top. I like to use the broil setting the last few minutes to create a crispy golden top.