Transform leftover potatoes from a humble side dish into a comforting and satisfying main course with these delicious leftover potato soup recipes. Not only do these recipes help reduce food waste, but they also allow you to enjoy the familiar taste of potatoes in a whole new way. Let's dive into these heartwarming and easy-to-make soups that will warm your soul and please your taste buds.
Why Make Soup with Leftover Potatoes?
Using leftover potatoes for soup is a fantastic way to repurpose leftovers and create a nutritious and satisfying meal. Potatoes are versatile, affordable, and packed with essential vitamins and minerals. By turning them into soup, you can create a comforting and filling dish that's perfect for any time of year. Plus, it's an excellent way to reduce food waste and save money on your grocery bill.
Best Leftover Potatoes for Soup
When choosing leftover potatoes for soup, opt for varieties that hold their shape well during cooking, such as Yukon Gold, red potatoes, or fingerlings. Avoid using potatoes that are too old or have started to sprout, as their texture and flavor may not be ideal for soup. Also, ensure that the potatoes are cooked but still firm, as overcooked potatoes can become too mushy when simmered in soup.

Storing Leftover Potatoes
To store leftover potatoes properly, allow them to cool to room temperature, then refrigerate them in an airtight container for up to five days. Alternatively, you can freeze cooked potatoes for up to three months. To freeze, spread the potatoes in a single layer on a baking sheet lined with parchment paper, freeze until solid, then transfer them to a freezer bag or airtight container.
Classic Creamy Potato Soup
This creamy potato soup is a comforting and satisfying classic that's perfect for chilly evenings. With a rich and velvety texture, this soup is made even more delicious with the addition of bacon, onions, and garlic. Serve it with crusty bread and a side salad for a complete meal.
Ingredients
- 4 cups leftover cooked potatoes, diced
- 4 slices bacon, diced
- 1 onion, diced
- 2 cloves garlic, minced
- 2 cups chicken or vegetable broth
- 1 cup milk
- Salt and pepper, to taste
- Chopped fresh chives, for garnish (optional)
Instructions
- In a large pot, cook bacon over medium heat until crispy. Remove bacon with a slotted spoon and set aside, but keep the bacon grease in the pot.
- Add onion and garlic to the pot and cook until softened, about 5 minutes.
- Add diced potatoes, broth, and milk to the pot. Bring to a simmer, then reduce heat to low and let it cook for 15-20 minutes, or until the potatoes are very tender.
- Using an immersion blender, blend the soup until smooth and creamy. Alternatively, you can transfer the soup to a blender and blend until smooth, then return it to the pot.
- Stir in the reserved bacon, salt, and pepper to taste. Garnish with chopped chives and serve hot.
Lentil and Potato Soup
This hearty and nutritious soup combines leftover potatoes with lentils, vegetables, and fragrant spices for a flavorful and satisfying meal. This soup is perfect for meal prepping and can be frozen for up to three months.

Ingredients
- 2 tbsp olive oil
- 1 onion, diced
- 2 carrots, diced
- 2 cloves garlic, minced
- 1 tsp ground cumin
- 1 tsp smoked paprika
- 4 cups leftover cooked potatoes, diced
- 1 cup green or brown lentils, rinsed and picked over
- 4 cups vegetable or chicken broth
- 1 can (14.5 oz) diced tomatoes
- Salt and pepper, to taste
- Chopped fresh parsley, for garnish (optional)
Instructions
- In a large pot, heat olive oil over medium heat. Add onion, carrots, and garlic, and cook until softened, about 5 minutes.
- Add cumin and smoked paprika to the pot and cook for 1 minute, stirring constantly.
- Add diced potatoes, lentils, broth, and diced tomatoes (with juice) to the pot. Bring to a boil, then reduce heat to low and let it simmer for 25-30 minutes, or until the lentils are tender.
- Season with salt and pepper to taste. Garnish with chopped parsley and serve hot.
Potato and Kale Soup
This vibrant and nutritious soup combines leftover potatoes with kale, white beans, and a touch of lemon for a refreshing and comforting meal. This soup is perfect for using up leftover kale and can be made vegetarian or vegan by using vegetable broth.
Ingredients
- 2 tbsp olive oil
- 1 onion, diced
- 2 cloves garlic, minced
- 4 cups leftover cooked potatoes, diced
- 1 can (15 oz) cannellini beans, drained and rinsed
- 4 cups vegetable or chicken broth
- 4 cups chopped kale
- Juice of 1 lemon
- Salt and pepper, to taste
- Crumbled feta cheese, for garnish (optional)
Instructions
- In a large pot, heat olive oil over medium heat. Add onion and garlic, and cook until softened, about 5 minutes.
- Add diced potatoes, cannellini beans, and broth to the pot. Bring to a simmer, then reduce heat to low and let it cook for 15-20 minutes, or until the potatoes are very tender.
- Stir in kale and lemon juice, and cook until the kale is wilted and tender, about 5 minutes.
- Using an immersion blender, blend the soup until smooth and creamy. Alternatively, you can transfer the soup to a blender and blend until smooth, then return it to the pot.
- Season with salt and pepper to taste. Garnish with crumbled feta cheese and serve hot.
Nutritional Information
Here's a comparison of the nutritional information for each of the three leftover potato soup recipes, based on a 1-cup serving size:
| Recipe | Calories | Total Fat (g) | Saturated Fat (g) | Cholesterol (mg) | Sodium (mg) | Total Carbohydrate (g) | Dietary Fiber (g) | Protein (g) |
|---|---|---|---|---|---|---|---|---|
| Classic Creamy Potato Soup | 250 | 10 | 4 | 15 | 700 | 30 | 3 | 8 |
| Lentil and Potato Soup | 280 | 5 | 1 | 0 | 650 | 45 | 12 | 13 |
| Potato and Kale Soup | 220 | 6 | 1 | 0 | 600 | 35 | 7 | 9 |
These nutritional values are approximate and may vary depending on the specific ingredients used and the size of the serving.

Incorporating leftover potatoes into these delicious and comforting soup recipes is an excellent way to reduce food waste and create satisfying meals. Whether you prefer a creamy and indulgent classic potato soup, a hearty and nutritious lentil and potato soup, or a vibrant and refreshing potato and kale soup, there's a recipe here for everyone to enjoy. So, the next time you have leftover potatoes, don't let them go to waste – turn them into a comforting and nourishing soup instead!






















