Prepare the vegetables. Cut the broccoli into smaller florets, peel and chop the potatoes, chop a stalk of celery, and finely dice small onion.
In a large saucepan, warm up olive oil then add the chopped onion, garlic, celery and potatoes then sauté until the onion is tender.
Add the broccoli florets and finely chopped fresh parsley.
Add the vegetable broth and a cup of water. If you like you can just add 2 cups of vegetable broth and skip the water.
Season with your favorite herbs and spices then allow the soup to cook for 10 to 15 minutes or just until the potatoes are fork tender.
Do a taste test and adjust seasoning if necessary then serve your broccoli soup then top with crumbled feta cheese. Enjoy