01 -
In a medium pot, combine 225 g dried brown lentils with 3 cups of water and a pinch of salt. Cook over medium heat for 15 minutes until tender. Drain and set aside.
02 -
Place peeled potatoes in a large pot and cover with water. Bring to a boil and cook until the potatoes can be pierced with a fork.
03 -
Drain the cooked potatoes and return them to the pot. Add olive oil, almond milk, salt, and pepper. Use a potato masher to mash until smooth.
04 -
Preheat the oven to 350°F (175°C).
05 -
Over medium heat, sauté mushrooms, onions, garlic, celery, and fresh herbs in 1 tbsp olive oil until softened, about 2-3 minutes.
06 -
Sprinkle 2 tbsp of all-purpose flour over the sautéed vegetables and stir together.
07 -
Stir in the tomato paste, tamari, and vegetable stock. Mix well and bring to a simmer.
08 -
Add the cooked lentils, frozen corn, and peas. Adjust seasoning with salt and pepper. Cook for 4-5 minutes until the sauce thickens.
09 -
Transfer the lentil mixture into a 9x13-inch baking dish. Spread the mashed potatoes evenly on top.
10 -
Place the dish on a baking tray to catch any spills. Bake uncovered for 25-30 minutes at 350°F (175°C). Optionally, broil for 1-2 minutes for a crispy top.
11 -
Allow the dish to cool for 5-10 minutes before serving to help the layers thicken.