Immune Boosting Broccoli Soup

Heat the oil in a large soup pot.

Add the leek, onion, garlic, carrot and celery and sauté for about 5 minutes.

Add the vegetable broth and water and bring to a boil.

Reduce heat to a simmer and add the broccoli, spinach and kale. Cook for 4 to 5 minutes.

Remove from heat and blend with a stick blender or blend in batches in a stand blender.

Add the lemon zest and lemon juice and season with salt and pepper to taste.