Wash the broccoli and spinach thoroughly and chop them finely.
Chop the onion and garlic.
Heat olive oil in a pot and sauté the onion and garlic.
Add the broccoli and spinach and stir-fry together.
Pour in water and low-sodium vegetable broth, then bring to a boil.
When all the ingredients are tender, blend them smoothly with a hand blender.
Season with salt and pepper to taste.
Serve in a bowl.