My Lazy Weeknight Lentil Soup (The One I Make on Repeat)

One pot, pantry staples, barely any chopping. This is the soup I come back to when I'm tired, broke, or both — and it never lets me down.

A bowl of golden lentil soup with a swirl of yogurt and a crust of bread

I’ve shared a lot of ideas on this blog, but recipes I rarely post, because most of what I cook is too improvised to write down. This one is the exception. I make it almost every week, it costs next to nothing, and it has rescued more tired evenings than I can count. So here it is, finally written down properly.

Why this soup earns its place

I have a low tolerance for recipes that lie about effort. “Quick and easy” usually means quick and easy if you enjoy chopping eleven things. This one is genuinely low-effort:

  • One pot.
  • Red lentils, which cook fast and need no soaking.
  • Mostly pantry staples, so I can make it without a shop.

It’s the meal I reach for when I’m worn out, when payday is still days away, or when I just can’t be bothered to think. It’s also quietly good for me — fibre, plant protein, vegetables hidden in plain sight.

What you need

  • 1 cup red lentils, rinsed
  • 1 onion, roughly chopped
  • 2 cloves garlic (or a lazy spoon of the jarred stuff)
  • 1 carrot, diced — or honestly any sad vegetable in the drawer
  • 1 tin chopped tomatoes
  • 1 tsp cumin, a pinch of chilli, salt
  • About 4 cups stock or water
  • A squeeze of lemon and a spoon of yogurt to finish

How I make it

  1. Soften the onion, garlic and carrot in a glug of oil for a few minutes. No need to be precious about it.
  2. Stir in the spices for thirty seconds until they smell good.
  3. Tip in the lentils, tomatoes and stock. Bring to a simmer.
  4. Let it bubble away for about 20–25 minutes, until the lentils collapse into something thick and golden.
  5. Blend it smooth, or leave it rustic — I usually do half and half. Finish with lemon and yogurt.

The lemon at the end is not optional in my kitchen. It takes the soup from “fine” to “oh, that’s actually really good.”

The variations I rotate through

Because making the exact same thing every week eventually gets old, I switch it up:

  • Coconut version: swap some stock for a tin of coconut milk and lean into the chilli.
  • Greens version: stir in a couple of handfuls of spinach right at the end.
  • Crunch version: top with toasted seeds or a few croutons for texture.

That’s the whole thing. It’s not fancy and it’s not trying to be. It’s just a warm bowl of something good on the nights when cooking feels like one ask too many — and somehow, those are the nights I most need it.

A few questions I get asked

Can I freeze it?

Yes, beautifully. I freeze it in single portions and it reheats like it never left. The texture thickens as it sits, so loosen it with a splash of water or stock when you warm it up.

What if I don't have all the spices?

Don't stress. Cumin is the one I'd fight for, but the soup is forgiving. Curry powder covers a lot of bases if your spice rack is thin. Use what you've got.