Lentil and Vegetable Hotpot

Mary Jackson

This oven-baked hotpot layers earthy lentils and mushrooms in a rosemary-and-thyme-seasoned tomato base, then tops everything with overlapping potato slices that crisp and brown as it bakes. The technique mirrors a traditional Lancashire hotpot, with lentils standing in for meat. From prep to table, plan on about 90 minutes.

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Prep Time 25

Cook Time 55

Total Time 1 20

Course Main Course

Cuisine British / Irish

Servings bowls

Calories 554 kcal

Equipment

5–6 qt Dutch oven or deep oven-safe skillet
Chef's knife
Cutting board
Measuring cups and spoons
Wooden spoon or spatula
Mandoline or sharp knife (for potatoes)
Colander or fine-mesh sieve
Oven mitts

Ingredients

For the Hotpot Base & Aromatics:

2 tbsp extra-virgin olive oil choose a robust, peppery oil for depth
1 large yellow onion, diced about 10 oz; look for firm, heavy onions
2 medium carrots, diced about 8 oz total; sweet, young carrots preferred
2 ribs celery, diced choose crisp, pale-green ribs
8 oz cremini mushrooms, sliced wipe clean; avoid water-logging for better browning
4 cloves garlic, minced freshly minced for best aroma
2 tbsp tomato paste double-concentrated if available
1 tsp dried thyme rub between fingers to release oils
1 tsp dried rosemary, crushed lightly crush to avoid twiggy bits
1 tsp smoked paprika Spanish pimentón adds gentle smokiness
2 pieces bay leaves prefer Turkish bay for softer flavor
1 cup dry brown or French green lentils, rinsed these hold their shape; avoid red lentils here
3 cups low-sodium vegetable broth quality broth matters—choose a brand you enjoy sipping
14.5 oz crushed tomatoes one standard can; San Marzano-style preferred
1 tbsp tamari or soy sauce adds savory depth; use low-sodium if sensitive
1 tsp kosher salt, divided start with 1 tsp, adjust to taste later
½ tsp freshly ground black pepper adjust to taste
2 tsp balsamic vinegar balances acidity and rounds flavors
1 cup frozen peas no need to thaw
1 tsp lemon zest finely grated; brightens the finish
¼ cup flat-leaf parsley, chopped fresh and vibrant

For the Potato Topping & Finish:

1 ½ lb Yukon Gold potatoes, thinly sliced (about 1/8 inch) uniform slices ensure even browning; peel optional
1 ½ tbsp extra-virgin olive oil for tossing/brushing potato slices
¼ tsp kosher salt for seasoning potato topping
1 pinch freshly ground black pepper to finish before baking

Instructions

Preheat the oven to 375°F (190°C). Place an oven rack in the upper-middle position for better browning later.
Rinse 1 cup lentils under cool water in a sieve until the water runs mostly clear. Set aside to drain. Scrub and thinly slice the potatoes about 1/8 inch thick. Tip: A mandoline ensures uniform slices. If slicing ahead, keep potatoes in cold water to prevent browning, then drain and pat dry thoroughly before topping.
Warm 2 tbsp olive oil in a 5–6 qt Dutch oven over medium heat. Add diced onion, carrots, and celery with a pinch of salt. Cook, stirring occasionally, until the edges turn golden and you see a light fond on the pot, 8–10 minutes. Aromas should be sweet and savory, not acrid.
Add sliced mushrooms and cook until they release their juices and reabsorb them, then take on a deep brown color, 6–8 minutes. Avoid overcrowding; let them sear for better umami.
Clear a small spot in the pot. Add tomato paste and cook, stirring, until it turns brick-red and lightly caramelized, 1–2 minutes. Stir in the minced garlic and cook just until fragrant, about 30 seconds—avoid browning.
Sprinkle in thyme, crushed rosemary, and smoked paprika; bloom the spices for 30 seconds to awaken their oils. Deglaze with a splash of broth if needed, scraping up the fond with a wooden spoon.
Add lentils, vegetable broth, crushed tomatoes, tamari, bay leaves, 1 tsp kosher salt, and 1/2 tsp black pepper. Stir well, bring to a boil, then reduce to a gentle simmer. Cover and cook for 15 minutes, stirring once or twice, until the lentils are slightly tender but not fully cooked—they’ll finish in the oven.
While the filling simmers, drain and pat the potato slices completely dry (crisping depends on this). Toss with 1 1/2 tbsp olive oil and 1/4 tsp kosher salt.
Uncover the pot, remove bay leaves, and stir in balsamic vinegar, peas, lemon zest, and half the parsley. Taste and adjust seasoning. The stew should be rich, savory, and balanced with a gentle tang.
Shingle the potato slices over the filling in overlapping circles, like roof tiles, leaving no large gaps. Brush or dab any remaining oil over the surface. Finish with a pinch of black pepper.
Transfer to the oven (uncovered) and bake at 375°F (190°C) until the potatoes are tender and lightly golden at the edges and the filling bubbles around the sides, about 30 minutes. For deeper color, increase to 425°F (220°C) for an additional 10 minutes, or broil on high 2–4 minutes, watching closely.
Rest the hotpot for 10 minutes to settle. Finish with the remaining parsley. The top should be golden with crisp peaks; the aroma, herby and gently smoky.

Notes

Mary’s Tips:

Maximize Umami: Add 1 tsp white miso or a few chopped sun-dried tomatoes in oil with the tomato paste.
Oil-Free Option: Sweat aromatics in 3–4 tbsp water or broth, adding more as needed; brush potatoes lightly with aquafaba instead of oil.
Gluten-Free: Use tamari or coconut aminos in place of soy sauce.
Lentil Choice: Brown or French green hold structure. Avoid red/yellow; they’ll turn mushy.
Speed Up Browning: Don’t stir mushrooms too often—let them sear undisturbed for 2–3 minutes per side.
No Dutch Oven? Build the filling in a skillet, transfer to a 9×13 inch baking dish, top with potatoes, and bake.
For the crispiest potato lid, dry slices thoroughly before topping and avoid excess liquid pooling on the surface.
Taste and season in stages—salt early for vegetables, then fine-tune after simmering and again after baking.

Serving Suggestions:

Ladle the hotpot into warm, shallow bowls to showcase the potato rosette. Drizzle with a few drops of peppery olive oil and add a final sprinkle of parsley or chives. Pair with a sharply dressed green salad (mustard vinaigrette) and thick slices of warm sourdough. Drinks: a malty English-style ale or a smoky black tea. Signs of perfection: crisp, golden potato edges; vibrant green peas; a glossy, gently bubbling sauce.

Culinary Context:

Rooted in the British Lancashire tradition, hotpot typically features slow-cooked meat beneath a potato “lid.” Here, lentils and mushrooms provide hearty body and depth without compromise. I first served this on a rain-swept evening in Manchester—no one missed the lamb, and the pot returned to the kitchen empty.

Optional Advanced Instructions:

Make-Ahead: Cook the filling up to 2 days ahead; chill. Rewarm until bubbly, top with freshly sliced potatoes, and bake.
Freeze: Freeze the filling (without potatoes) for up to 2 months. Thaw overnight, then proceed with topping and baking.
Parallel Workflow: While aromatics sauté, slice potatoes. While the filling simmers, season and dry potato slices to be oven-ready.
Beginner Alternative: If slicing very thinly is challenging, cut potatoes 1/4 inch thick and bake covered for 15 minutes, then uncover and finish until golden.

Timing & Details:

Prep Time: 25 minutes (0 hr 25 min)
Cook Time: 55 minutes (0 hr 55 min)
Servings: 4 bowls
Cuisine: British
Course: Dinner / MainCourse
Oven Temps: 375°F (190°C) to bake; finish at 425°F (220°C) or broil for color

Nutrition

Calories: 554kcalCarbohydrates: 89gProtein: 24gFat: 14gSaturated Fat: 2gPolyunsaturated Fat: 2gMonounsaturated Fat: 9gSodium: 1351mgPotassium: 2147mgFiber: 26gSugar: 15gVitamin A: 7104IUVitamin C: 64mgCalcium: 159mgIron: 9mg

Keyword British, comfort food, Lentil and Vegetable Hotpot, One-Pot, Vegan

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