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Lentil Shepherd’s Pie


  • Author: David

Ingredients

Scale
  • For the Lentil Filling:
    • 1 tablespoon olive oil: Extra virgin, for sautéing and adding a touch of fruity richness.
    • 1 large yellow onion, finely chopped: Forms the aromatic base of our filling.
    • 2 medium carrots, peeled and diced: Adds sweetness, color, and texture.
    • 2 celery stalks, finely diced: Provides a subtle savory note and classic mirepoix element.
    • 8 oz (225g) cremini mushrooms, wiped clean and roughly chopped: Lends a meaty texture and deep umami flavor.
    • 3 cloves garlic, minced: Essential for its pungent, aromatic kick.
    • 1 cup (200g) brown or green lentils, rinsed: The star of the show, providing protein and a hearty bite. Do not use red lentils as they break down too much.
    • 4 cups (950ml)  vegetable broth: Good quality broth is key for a flavorful base.
    • 1 (14.5-ounce / 400g) can diced tomatoes, undrained: Adds acidity, sweetness, and body to the sauce.
    • 2 tablespoons tomato paste: Concentrated tomato flavor for depth and richness.
    • 1 teaspoon dried thyme: A classic herb pairing for shepherd’s pie, lending an earthy aroma.
    • 1 teaspoon dried rosemary, crushed: Adds a piney, robust flavor that complements the lentils.
    • 1 tablespoon soy sauce or tamari (for gluten-free): Boosts the umami and savory notes.
    • 1 tablespoon balsamic vinegar: Adds a touch of tangy sweetness to balance the flavors.
    • 1 cup frozen peas: Stirred in at the end for a pop of color and sweetness.
    • 1/2 cup frozen corn kernels (optional): Adds another layer of sweetness and texture.
    • Salt and freshly ground black pepper to taste: Essential for enhancing all the flavors.
  • For the Potato Topping:
    • 2.5 lbs (1.1kg) russet or Yukon Gold potatoes, peeled and quartered: About 4-5 medium potatoes, chosen for their fluffy mashing qualities.
    • 1/4 cup (60ml) unsweetened plant-based milk (almond, soy, or oat): For creaminess; use more or less to reach desired consistency.
    • 24 tablespoons vegan butter or olive oil: Adds richness and flavor to the mash.
    • 1/2 teaspoon salt, or to taste: Enhances the potato flavor.
    • 1/4 teaspoon black pepper, or to taste: For a gentle warmth.
    • Pinch of nutmeg (optional): A traditional addition that adds a subtle warmth.
    • Paprika for garnish (optional): Adds color and a hint of smokiness when baked.

Instructions

  1. Prepare the Lentils (if not pre-cooked): If using dried lentils that require pre-cooking according to package directions, do this first. However, for this recipe, we will cook them directly in the filling. Ensure your lentils are well rinsed under cold water until the water runs clear. Set aside.
  2. Sauté the Aromatics: In a large, heavy-bottomed pot or Dutch oven, heat the 1 tablespoon of olive oil over medium heat. Add the chopped onion, diced carrots, and diced celery (the mirepoix). Sauté for 8-10 minutes, stirring occasionally, until the vegetables have softened and the onion is translucent.
  3. Add Mushrooms and Garlic: Add the chopped cremini mushrooms to the pot. Cook, stirring occasionally, for about 5-7 minutes, until the mushrooms have released their liquid and started to brown. This browning step is crucial for developing deep umami flavor. Stir in the minced garlic and cook for another minute until fragrant, being careful not to burn it.
  4. Build the Filling Base: Stir in the tomato paste and cook for 1-2 minutes, allowing it to caramelize slightly – this intensifies its flavor. Add the rinsed lentils,  vegetable broth, diced tomatoes (undrained), dried thyme, dried rosemary, and soy sauce (or tamari). Bring the mixture to a gentle boil.
  5. Simmer the Filling: Once boiling, reduce the heat to low, cover the pot, and let it simmer for 35-45 minutes, or until the lentils are tender but not mushy. Stir occasionally to prevent sticking. The cooking time will vary depending on the specific type and age of your lentils.
  6. Prepare the Potato Topping: While the lentil filling is simmering, prepare the mashed potato topping. Place the peeled and quartered potatoes in a large pot and cover them with cold, salted water. Bring to a boil over high heat, then reduce the heat to medium and cook for 15-20 minutes, or until the potatoes are very tender and can be easily pierced with a fork.
  7. Mash the Potatoes: Drain the cooked potatoes thoroughly in a colander. Return them to the hot, empty pot. Add the unsweetened plant-based milk, vegan butter (or olive oil), salt, pepper, and optional nutmeg. Mash the potatoes until smooth and creamy using a potato masher or a ricer for an extra fluffy texture. Avoid overmixing, as this can make them gluey. Taste and adjust seasonings if needed. Set aside and keep warm.
  8. Preheat Oven and Finish Filling: Preheat your oven to 375°F (190°C). Once the lentils are tender, stir the balsamic vinegar, frozen peas, and optional frozen corn into the lentil filling. Cook for another 2-3 minutes, just until the peas are heated through. Taste the filling and adjust salt, pepper, or herbs as needed. The consistency should be thick and stew-like, not overly soupy. If it’s too thin, let it simmer uncovered for a few more minutes to reduce.
  9. Assemble the Shepherd’s Pie: Pour the lentil filling into a 9×13 inch baking dish or a similar-sized oven-safe casserole dish. Spread it out evenly. Carefully spoon the mashed potato topping over the lentil filling, starting around the edges to create a seal (this helps prevent the filling from bubbling over) and then filling in the center. Gently spread the potatoes to cover the entire surface. You can create a decorative pattern on top with the back of a spoon or a fork (ridges will brown nicely).
  10. Bake the Pie: Sprinkle the top with a little paprika, if desired, for color. Place the baking dish on a baking sheet (to catch any potential drips) and bake in the preheated oven for 25-30 minutes, or until the potato topping is lightly golden brown and the filling is bubbling around the edges.
  11. Rest and Serve: Remove the Lentil Shepherd’s Pie from the oven and let it rest for at least 10-15 minutes before serving. This allows the filling to set slightly and makes it easier to serve. Garnish with fresh parsley or chives if desired.

Nutrition

  • Serving Size: one normal portion
  • Calories: 450