Early-autumn soups are the cheapest hot meal in the Swiss kitchen. As the first cool evenings arrive, the vegetables a good soup needs — squash, carrots, leeks, potatoes and dried pulses — hit their annual price floor. Five classic Swiss soups come in under CHF 1 a bowl on this end-of-summer produce plus pantry staples, and every one freezes.

A home-cooked bowl lands around CHF 0.75–0.95. The chilled soup at the supermarket counter is CHF 3–4, and a café bowl runs CHF 8–9. Swap three lunches a week for homemade soup and you save roughly CHF 25–30 a week — real money for something you cook in one pot in half an hour.

Which autumn vegetables make the cheapest soup

Soup is cheap because its best ingredients are cheap in autumn. From September, Swiss root vegetables and squash come in from the fields in volume and prices fall to the lowest point of the year. Carrots (Rüebli), potatoes, leeks, celeriac, onions and Kürbis regularly sit at CHF 1–2 per kilo, and one kilo of vegetables makes four to six bowls.

The pantry does the rest. Dried lentils, split peas, white beans, a bouillon cube or homemade stock, an onion and a splash of oil turn cheap veg into a filling meal. These are the same low-cost staples behind our pantry-only recipes — nothing exotic, nothing that spoils in a week.

Rule of thumb: a pot of soup for four costs less than a single chilled soup from the counter. If a bowl works out above CHF 1.20, the culprit is almost always bought stock or a pricey protein — swap in a homemade vegetable-scrap stock and dried pulses and it drops back under CHF 1.

Five Swiss soups under CHF 1 a bowl

Each of these leans on one cheap seasonal vegetable and cooks in a single pot. The costs assume Swiss discounter prices and home-cooked batches, with pantry staples counted pro rata. For more ideas built the same way, see our roundup of the cheapest soups in Switzerland.

SoupMain autumn vegetableCost per bowlFreezes?
Kürbissuppe (squash)Butternut or Hokkaido squashCHF 0.75Yes — blends smooth after thawing
Rüeblisuppe (carrot)Carrots + a knob of gingerCHF 0.65Yes
Lauch-Kartoffel (leek & potato)Leek + potatoCHF 0.85Yes — re-blend if grainy
Linsensuppe (lentil)Red lentils + carrotCHF 0.95Yes — thickens, add water
Minestrone (mixed veg)Beans, celery, tomatoCHF 0.80Yes — freeze without the pasta
Estimated cost per 300–350 ml bowl at Swiss discounter prices, observed across recent autumn seasons including 2026. Home-cooked batches; pantry staples (oil, stock, spices) counted pro rata.

How do you make a thin soup filling enough for dinner

A pure vegetable purée is a lovely starter but a thin supper. To turn a bowl into a main meal, add a starch or protein that costs almost nothing:

  • Dried pulses: a handful of red lentils, split peas or white beans thickens the pot and adds protein for a few centimes a portion.
  • Potato or barley: a diced potato or a scoop of pearl barley makes any vegetable soup stick to the ribs.
  • Bread and cheese: a heel of yesterday's bread and a little grated Sbrinz or Gruyère — or a hard cheese rind simmered in the pot — add body and flavour for next to nothing.
  • A spoon of cream or milk: stirred in at the end, it makes a squash or carrot soup taste richer than it is.

Build two or three of these in and a CHF 0.80 bowl becomes a dinner a hungry family will not complain about.

Can you batch-cook and freeze soup in portions

Yes — soup is close to the ideal batch-cook meal, and freezing it in single portions is what makes the low cost per bowl real. Cook once, eat for a month:

  1. Cook a double batch. Sweat an onion or leek in oil, add your chopped autumn veg, cover with stock and simmer 20–25 minutes until everything is soft.
  2. Blend or leave it chunky, then season at the very end — soup needs more salt than you expect once it is hot.
  3. Cool it fast. Stand the pot in a sink of cold water and portion within two hours so nothing sits warm.
  4. Portion into 300–350 ml tubs or freezer bags laid flat to stack. Label each with the contents and the date.
  5. Freeze and use within three months. Reheat from frozen or thaw overnight; add a splash of water if it has thickened, and stir in fresh herbs, pasta or cream only when reheating.

Freezer benchmark: a blended vegetable soup keeps about three days in the fridge and three months frozen. One 300–350 ml portion is a main-meal bowl; 200 ml is a starter. Freeze soups meant to carry pasta or rice without the starch and add it fresh, or it turns to mush.

Where soup vegetables are cheapest — and how to waste nothing

The cheapest soup veg of all is the veg you already have. Autumn is glut season: the last summer courgettes and tomatoes, plus the first squash and roots, often go cheap because there is so much of it about. Farm shops and the discounter loose-veg bins are where the kilo prices are lowest, and slightly bruised or odd-shaped produce — perfect for a pot that gets blended anyway — is cheaper still.

Soup is also the best anti-waste tool in the kitchen. The offcuts most people bin — carrot tops, leek greens, celery leaves, onion skins, a cheese rind — are exactly what zero-waste vegetable cooking turns into a free, deeply flavoured stock. It adds up: Swiss households throw away roughly 119 kg of food per person a year, with vegetables among the most-wasted categories, according to the Federal Office for the Environment (BAFU). A weekly soup made from the week's scraps quietly erases a chunk of that.

What a week of soup lunches really costs

Put it together for one person swapping the weekday takeaway for a batch of soup:

  • One pot of lentil-and-carrot soup: about CHF 4.50 in ingredients for six generous bowls, or CHF 0.75 a bowl.
  • Five soup lunches instead of five CHF 9 café bowls: you spend under CHF 4 rather than CHF 45.
  • Weekly saving: roughly CHF 40, or about CHF 160 a month if soup covers your work lunches.

Even swapping just three lunches a week nets around CHF 25–30 — before you count the vegetables rescued from the bin. Cook on Sunday, freeze in portions, and the week runs itself. Download Eini and let the algorithm line up the cheapest soup veg for you.

Frequently asked questions

What is the cheapest soup to make?

A dried-pulse soup — red lentil or split pea — built on autumn root vegetables and a homemade stock is usually the cheapest, often CHF 0.60–0.75 a bowl. Dried lentils and beans cost a fraction of meat and thicken the pot without any extra ingredient.

Which autumn veg is cheapest for soup?

Swiss root vegetables and squash. From September, carrots (Rüebli), potatoes, leeks, celeriac and Kürbis drop to their annual low, often CHF 1–2 per kilo, and a single kilo makes four to six bowls. They are the cheapest soup base of the year.

Can I freeze soup in portions?

Yes. Cool the soup quickly, portion it into 300–350 ml tubs or flat freezer bags, label them and freeze for up to three months. Blended vegetable soups freeze best; leave pasta, rice or cream out and add them fresh when you reheat.

How do I make soup more filling?

Add a cheap starch or protein — lentils, white beans, potato, pearl barley or a handful of pasta — and finish with bread, grated cheese or a cheese rind simmered in. That turns a thin starter into a main meal for a few centimes more.

Does Eini plan soup ingredients?

Yes. Eini's algorithm matches seasonal soup vegetables to the current Aktionen across Coop, Migros, Lidl, Aldi, Denner and Aligro, then builds your shopping list and slots the soup into your weekly meal plan — so the cheapest bowl is the default, not a chore.

Plan smarter, spend less with Eini.

Real prices from Coop, Migros, Lidl, Aldi, Denner & Aligro. Smart meal plans. Automatic grocery lists.

Download