There’s something deeply comforting about making soup from scratch. The gentle bubbling of the pot, the smell of spices drifting through the kitchen, and that first spoonful of warmth that instantly makes you feel nourished.

This sweet potato soup is exactly that kind of comfort. It’s hearty, filling, and full of goodness — perfect for anyone trying to eat more plant-based meals without spending a fortune.

When I first made this recipe, I didn’t expect much. I’d tried a few soups before that turned out bland or watery. But this one was different. The flavours came together beautifully, and I loved it so much that I made it twice in one week.

Even better, it’s budget-friendly, made with simple ingredients you probably already have — carrots, lentils, a tin of tomatoes, and of course, the star of the show: sweet potato.

It’s proof that healthy eating doesn’t need to be complicated or expensive.

Why sweet potatoes are a great choice

Sweet potatoes are one of those ingredients that can do it all. There are so many ways to use a sweet potato. And, they’re filling yet light, naturally sweet, and packed with nutrients. A single serving is rich in vitamin A, vitamin C, and manganese, plus a good source of fibre that keeps you fuller for longer.

They’re also naturally low in fat, which makes them ideal for a warming winter soup that feels indulgent but is completely wholesome.

And the colour — that glorious, cheerful orange — makes any dull day feel brighter.

If you’re used to white potatoes, sweet potatoes offer a delicious alternative. They cook faster, blend beautifully into soups, and pair well with spices, coconut milk, or even just a touch of chilli for extra warmth.

Crochet Sweet Potato 

Cooking from scratch saves money

Making your own soup from scratch doesn’t just taste better — it saves money too. A tin of ready-made soup can cost £2–£3 and often contains added sugar, salt, and preservatives.

With homemade soup, you control what goes in, and the cost per portion can be as little as £1 or less, especially if you buy vegetables in bulk or use what’s already in your kitchen.

It’s also an excellent way to use up veg that’s starting to soften — carrots, onions, or potatoes that need eating. Just chop, simmer, and blend.

For busy weeks, double the recipe and freeze portions. You’ll have healthy, ready-to-go lunches for days without spending on meal deals or takeaway soups.

5kg sweet potatoes

What makes this soup healthy

This recipe ticks all the boxes for a nutritious meal. It’s:

• 100% plant-based

• High in fibre from lentils and vegetables

• Packed with antioxidants and vitamins

• Naturally low in fat and sugar

• Free from dairy, gluten, and refined ingredients

Lentils add protein and texture, while carrots and sweet potatoes bring sweetness without the need for cream or added sugar. It’s hearty enough to fill you up but light enough for everyday eating.

If you’re trying to live a healthier lifestyle, simple swaps like making your own soups can make a huge difference. It’s one of the easiest ways to eat well on a budget.

Super easy vegan sweet potato soup recipe

Here’s the exact recipe I used. It’s simple, quick, and tastes amazing.  I use a Nutri Ninja to make my soup.  The jug is thermoproof, so hot mixtures can be added straight to it, which makes soup-making really easy!

Ingredients

1 ginormous sweet potato (or 2–3 smaller ones)
1.5 litres vegetable stock
1 can chopped tomatoes
2 carrots
8 tablespoons red lentils
A sprinkle of chilli flakes
A few twists of black peppercorns

Method

1. First, make your vegetable stock using a stock cube or homemade stock. I often save vegetable peelings in the freezer to make my own.

2. Add the stock to a large pot and mix in the lentils, pepper, and chilli.

3. Chop the sweet potato and carrot into chunks, then add to the pot.

4. Simmer for around one and a half hours, until the vegetables are soft.

5. Pour the mixture into a blender (I use a Nutri Ninja) and add the chopped tomatoes. Blend until smooth.

6. For a thicker soup, leave as is. For a runnier texture, add a little more water or stock.

Serve warm and enjoy with crackers, bread, or a light salad on the side.

How to make it your own

One of the best things about this soup is how adaptable it is. You can:

• Add garlic, cumin, or smoked paprika for more depth of flavour

• Stir in a spoonful of coconut milk for creaminess

• Add spinach or kale for extra greens

• Top with seeds or croutons for crunch

It’s one of those recipes you can never really get wrong. A little tweak here or there, and it still turns out delicious.

How to store and reheat

This soup keeps well in the fridge for up to four days in a sealed container. Reheat gently on the hob or in the microwave until piping hot.

It also freezes beautifully. Divide it into individual portions, cool completely, and freeze for up to three months. Perfect for those days when you want something homemade but can’t be bothered to cook.

You're My Sweet Potato Card

Serving ideas

Pair your sweet potato soup with:

• Whole grain rice crackers (Kallo organic ones are my favourite)

• A slice of wholemeal toast with hummus

• A side of roasted chickpeas for extra protein

• A simple green salad with lemon dressing

It’s also ideal as a starter for dinner guests or as a main meal on a chilly evening.

Final word

This warming sweet potato soup is the perfect mix of comfort, health, and simplicity. It’s quick to prepare, budget-friendly, and packed with goodness.

If you’re looking for ways to eat healthier without spending more, this is a great place to start. Cooking from scratch, using everyday ingredients, really is one of the easiest ways to save money and nourish yourself at the same time.

So grab your favourite pan, chop some veg, and enjoy a big bowl of homemade comfort.