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Cauliflower and red lentil soup

A pale, creamy cauliflower-lentil soup with a yoghurt finish.

By The foodose editorial team. Nutrition calculated from USDA FoodData Central. Checked on paper on 12 September 2026; not yet cooked in a test kitchen or photographed, so the times and yield are estimates. How we develop our recipes
What still needs a real kitchen
  • Confirm the lentils collapse in 20 to 25 minutes
  • Photograph the finished bowls
Time
About 40 min
estimated
Serves
2
see below
Energy
310 kcal
per serving
Protein
23 g
per serving
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Not yet photographed. The panel names the dish’s main ingredients rather than showing a picture we have not taken.

Ingredients for 2 servings

2 servings

Check off ingredients as you go.

Contains milk. Check the labels on packaged ingredients:

  • vegetable stock. Vegetable stock often contains celery, and some contain milk or gluten; check the label, especially if you need it vegan.

Cooking steps

  1. Warm the oil in a large pan over medium heat and cook the onion for 5 minutes.

  2. Add the cauliflower, lentils, nutmeg and stock. Bring to the boil, then simmer for 20 to 25 minutes, until the lentils have collapsed and the cauliflower is soft.

  3. Blend until smooth, filling the blender no more than half full and holding the lid with a tea towel.

  4. Stir a ladleful of the warm soup into the yoghurt in a bowl first, then divide the soup between two bowls and spoon the loosened yoghurt over.

The useful detail

Temper the yoghurt gradually for a smoother finish. Adding it cold and straight into hot soup makes it seize into grains; warming it with a ladleful first prevents that.

Make it work for you

One serving is A large bowl with 75 g of yoghurt. You can switch to a smaller portion in the ingredients above; it is three quarters of this, and it contains correspondingly less energy and protein. It is an option, not a goal.

  • Plain yoghurt instead of Greek

    Thinner, and it stirs in more readily.

    Per serving: about 10 kcal less, about 4 g less protein, about the same fat.

  • Broccoli instead of cauliflower

    Green and stronger in flavour; the soup is less delicate.

    Per serving: about 15 kcal more, about 2 g more protein, about the same fat.

  • Leave the yoghurt out for a vegan soup

    The soup itself contains no dairy. The figures below include the yoghurt, so they would be lower in protein without it.

Estimated nutrition

Per standard serving, calculated from the ingredients above. Nutrition changes with substitutions, brands and how much oil stays in the pan.

A thick lentil soup where the yoghurt is doing real work: without it the bowl would have noticeably less protein.

Nutrition per serving
Energy310 kcal
Protein23 g
Fat6 g
of which saturates2 g
Carbohydrate46 g
of which sugarsnot calculated
Fibre9 g
Sodium1,170 mg
Show calculation notes

Each ingredient’s weight is multiplied by its USDA FoodData Central values per 100 g. The whole recipe is added up and divided by 2. Raw weights are used for meat, fish and vegetables; beans and lentils are drained weights. All of the oil is counted as eaten. Added salt is not included; sodium from stock, bread, cheese and tinned food is.

Calculation, whole recipe
IngredientWeight usedSourceEnergyProtein
olive oil4.5 gFDC 171413Oil, olive, salad or cooking40 kcal0.0 g
onion60 gFDC 170000Onions, raw24 kcal0.7 g
cauliflower350 gFDC 169986Cauliflower, raw88 kcal6.7 g
red lentils90 gFDC 174284Lentils, pink or red, raw322 kcal21.5 g
ground nutmeg0.5 gFDC 171326Spices, nutmeg, ground2 kcal0.0 g
vegetable stock735 gFDC 171583Soup, vegetable broth, ready to serve37 kcal1.8 g
Greek yoghurt150 gFDC 170903Yogurt, Greek, plain, lowfat110 kcal14.9 g
Whole recipeDivided by 2622 kcal45.6 g

Per serving the energy is rounded to the nearest 5 kcal, grams to the nearest whole gram and sodium to the nearest 10 mg. of which sugars could not be calculated, because one ingredient’s record does not cover it; the row above says which. Calculation method 1.0, September 2026. How the calculation works.

Storage and reheating

In the fridge
Cool it quickly, cover and refrigerate within 2 hours. The FDA chart gives soups and stews 3 to 4 days. It thickens considerably; loosen it with stock or water when reheating.
In the freezer
The same chart gives soups and stews 2 to 3 months in the freezer for best quality.
Reheating
Reheat until it reaches 74°C / 165°F, steaming hot throughout, stirring so it heats evenly.

Checked against US Food and Drug Administration, Refrigerator and Freezer Storage Chart, USDA Food Safety and Inspection Service, Leftovers and Food Safety, FoodSafety.gov, Safe Minimum Internal Temperatures and FoodSafety.gov, Cold Food Storage Chart. UK guidance from the Food Standards Agency is shorter, at two days for most leftovers.

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