Chop the onion and carrot. In vegetable oil, fry the vegetables on low heat until soft.
Add the pumpkin pieces to the pan, fry for another 4-5 minutes, not forgetting to stir.
Add the sliced garlic. Stir and let the vegetables simmer with garlic for 3-4 minutes.
In a saucepan, bring the water to a boil. Add the vegetables with garlic.
Add the beans to the saucepan to the vegetables (I used white, canned, pre-drain the liquid from the jar).
Add the mushrooms pre-fried in the same pan as the vegetables with garlic.
Boil everything together for 4-5 minutes. Add curry and salt/pepper to taste.
Remove the pan from the heat and mash the soup with a blender (the thickness of the soup can be adjusted to your liking).
Add sour cream, mix. Return the pot of soup to the fire, let it boil and remove from the heat.
Serve the soup with croutons, seasoned with your favorite herbs.