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THE COOKING NOTEBOOK · Vegetarian

Lentil-mushroom ragout: brown first, add tomatoes later

Build a substantial lentil ragout with browned mushroom slices, tender lentils and a sauce that stays spoonable.

THE COMPLETE FREE RECIPE

Lentil & mushroom ragout

Brown lentils and deeply browned mushrooms make a spoonable tomato ragout with carrot, thyme and parsley.

1 hr 25 minEstimated total time4 servingsYield
Lentil & mushroom ragout
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Ingredients

Volumes are approximate. For baking, use a scale; Metric keeps the specified gram weights.

Instructions

  1. Use a wide 21 cups + 2 tbsp + 0.42 tsp heavy pot. Heat 0.529 oz of the olive oil over medium-high heat. Add the mushrooms and 0.0353 oz salt and cook for 8–10 minutes, stirring occasionally, until released water has mostly evaporated and the mushrooms are browned. Transfer to a bowl.
  2. Reduce heat to medium. Add the remaining 0.353 oz oil, onion and carrots to the pot and cook for 6–7 minutes. Add the garlic and thyme and stir for 30 seconds. Stir in the lentils and 28.22 oz water, scraping up any browned residue.
  3. Bring to a boil, then reduce to a gentle simmer and partially cover. Cook for 25–35 minutes, stirring occasionally, until the lentils are tender throughout. Check the liquid level; if evaporation threatens to dry the pot before the lentils soften, add water in 0.882 oz increments, using no more than the extra 7.05 oz listed.
  4. Only after the lentils are tender, stir in the crushed tomatoes, browned mushrooms and their juices, remaining 0.106 oz salt and pepper. Simmer uncovered for 10–12 minutes, stirring, until thick but spoonable. Stir in the parsley and divide into 4 portions.
  5. Refrigerate leftovers promptly in shallow covered containers at 40°F (4°C) or colder, within 2 hours or 1 hour above 90°F (32°C), and use within 3–4 days. Reheat to 165°F (74°C), stirring from the bottom. Separately prepared pasta, potatoes or bread are serving suggestions and are not included in these portions.

Estimated nutrition

Per serving · 1 of 4
Calories
339 kcal
Protein
18.7 g
Total carbohydrate
54.8 g
Total fat
7.4 g
Total sugars
10.7 g

Calculated from the listed ingredients and yield. Brands, draining, cooking and portioning can change the result. Not a laboratory analysis.

Calculation notes & sources

Estimated from listed ingredient amounts and identified food-composition profiles, divided by the stated number of servings. Not laboratory analysis or kitchen testing. The ingredient-sum method uses raw or cooked food profiles matching the ingredient state. Moisture gain/loss does not change the stated serving count. No general cooking nutrient-retention factors are applied. All measured fats, sauces and cooking liquids are assumed consumed; actual amounts left in cookware or serving dishes can reduce intake. The estimate covers the complete listed recipe only, without suggested accompaniments. Calories are kcal. Protein, total carbohydrate, total fat and total sugar are grams. Total carbohydrate includes fiber; these are not net carbs. No %DV or FDA-compliance claim. Null means unavailable, never zero. Sodium and fiber are not included in this five-field panel. Naturally varying foods, brands and substitutions change the estimate.

View the ingredient calculations · Source 1

Times and nutrition are estimates. Check product labels, quantities and safe cooking. US measures are approximate; exact Metric amounts remain available.

By Recipe Pinboard · October 7, 2026 · 4 min read

This four-portion ragout uses brown lentils for body and thick cremini slices for a separate mushroom bite. The mushrooms brown first and leave the pot while the lentils cook; tomatoes enter only after those lentils are tender. The complete sequence takes about 85 minutes, with around thirty minutes of active preparation and stirring.

The recipe at a glance

Lentil & mushroom ragout makes 4 servings, with 1 hr 25 min estimated total time. View the standalone recipe page.

Use brown lentils and substantial mushroom slices

Pick over the 220 g dry brown lentils and rinse them. Split red lentils soften and break down differently, so they are not a direct substitute when the goal is a ragout with recognizable lentils. No overnight soaking is part of this method.

Clean 400 g cremini mushrooms with a damp towel or a brief rinse followed by drying. Trim tough stem ends and cut into approximately 1 cm thick slices. This thicker cut remains identifiable after browning and a later simmer; paper-thin slices would produce a different texture. Dice the carrots much smaller, around 5 mm, so they soften alongside the lentils.

Brown the mushrooms before adding watery ingredients

Use a wide, heavy pot with about five litres of capacity. Cook mushrooms in 15 g of the oil with 1 g salt, allowing their released moisture to mostly evaporate. Stir occasionally rather than constantly. The written eight-to-ten-minute period is an inspection window; a narrow pot or particularly wet mushrooms may take longer.

Transfer the browned slices to a bowl and keep their juices. If onion, carrots, tomatoes and lentils were all added at the start, the mushrooms would mostly simmer instead of developing this browned surface. The temporary transfer is worthwhile and still lets the rest of the dish use the same pot.

Soften the aromatics, then simmer the lentils

Add the remaining 10 g oil and cook the onion and carrot for six to seven minutes. Garlic and thyme follow for thirty seconds. Stir in the lentils and the initial 800 g water, scraping brown residue from the base. If residue is black and smells burnt, it is not a useful sauce ingredient.

Bring to a boil, then reduce to a gentle, partially covered simmer. Check at twenty-five minutes and continue until the lentils are tender all the way through. A persistent firm center needs more cooking, not a stronger tomato sauce. If evaporation threatens to dry the pot, add plain water in 25 g increments, within the listed extra 200 g maximum.

Let the tomatoes finish the sauce after the lentils soften

Once the lentils are tender, return the mushrooms and any bowl juices, then add crushed tomatoes, the remaining salt and pepper. The timing of the acid matters: pulse-cooking guidance advises adding acidic ingredients after the pulses soften. An old bag of lentils may still take longer than the estimate, so tenderness remains the deciding check.

Simmer uncovered for ten to twelve minutes, stirring along the bottom, until the mixture is thick but spoonable. The sauce should settle around the lentils and mushrooms, not remain a separate watery layer. Fold in parsley at the end so some fresh aroma survives the long cooking stages.

Use thickness as the finishing decision

If the finished ragout is too loose, continue a gentle uncovered simmer with regular stirring. If it has become stiff, use a little of the listed reserve water rather than another pour of oil. Stop while it still moves easily from the spoon; it will thicken further as it stands and chills.

Divide the complete batch into four portions. Pasta, bread and mashed potatoes are possible accompaniments but are not part of these ingredient totals. Refrigerate in shallow covered containers at 40°F (4°C) or colder within two hours, or one hour above 90°F (32°C), and use within three to four days. Reheat to 165°F (74°C), stirring thoroughly so the dense center heats evenly.

Common questions

Why are my lentils still firm?

Age, variety, insufficient liquid and early addition of acidic ingredients can affect cooking. Use brown lentils, maintain a gentle simmer and wait until they are tender before adding the tomatoes.

Can I leave the mushrooms in while the lentils cook?

You can, but they will spend much longer in liquid and their browned texture will soften more. The written transfer keeps their identity clearer and returns every collected juice to the finished ragout.

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