Bowl of rustic lentil and potato soup
5 from 7 votes

Rustic Lentil & Potato Soup

Satisfying Lentil Potato Soup with mushrooms and herbs! The rich, savory flavors remind me of a vegan version of classic beef stew!
Author: Kaitlin - The Garden Grazer
Prep Time30 minutes
Cook Time30 minutes
Total Time1 hour
Course: Soup
Cuisine: Gluten-Free, Oil-Free, Vegan
Servings: 5 medium bowls


  • 1 onion
  • 1 large carrot
  • 6 oz. mushrooms
  • 1 medium potato (about 1.5 cups diced)
  • 3-4 cloves garlic
  • 4 cups vegetable broth (plus 1 cup water)
  • 2 Tbsp. tamari (or soy sauce)
  • 1 cup green/brown lentils, uncooked
  • 1 cup spinach, more as desired
  • 1 tsp. dried parsley
  • 3/4 tsp. dried thyme
  • Salt to taste


  • Prepare the veggies: dice onion and carrot. Mince garlic. Slice mushrooms. Dice potatoes into about 3/4″ chunks.
  • In a stockpot over medium-high heat, saute onion for 5 minutes. (I use 3 Tbsp. water/broth for no-oil-saute method.)
  • Add potatoes, carrots, mushrooms, and dried thyme & parsley. Stir and saute 3-4 more minutes.
  • Add garlic. Stir and saute 1 minute.
  • Add 4 cups broth, 1 cup water, and tamari. Increase heat and bring to a boil.
  • Once boiling, add lentils (rinsed). Cover and reduce heat to a simmer. Simmer 30 minutes or until lentils are tender. Add more broth/water if desired.
  • Stir in roughly chopped spinach during the last couple minutes of cooking. Salt/pepper to taste or add more tamari.


Don't have dried thyme or parsley? Dried basil & oregano work very well here too! (Also feel free to add a bay leaf while the soup simmers and remove before serving.)
I love thick soups, so this recipe reflects that. If you prefer yours more thin & brothy, simply decrease the lentils (to about 2/3 cup) and/or increase the broth/water.
For gluten-free, use tamari.


Calories: 227kcal | Carbohydrates: 42g | Protein: 15g | Fat: 1g | Saturated Fat: 1g | Potassium: 974mg | Fiber: 16g | Sugar: 5g | Vitamin A: 3063IU | Vitamin C: 18mg | Calcium: 91mg | Iron: 7mg