Cut out the florets and set aside. Place the mushroom soup mixture in a bowl and mix with 2 cups of water. Once the powder dissolves, set aside.
In a pan, melt margarine. Add in garlic and saute for 2 minutes. Add in carrots and saute for 3 minutes. Add in mushrooms and saute these for 2 minutes.
Pour in the mushroom soup mixture and 2 more cups of water. Give it a good stir. Cover and simmer for 5 minutes. Stir again.
Season with pepper. Add in the broccoli florets. Stir and cover to cook for 5 more minutes. Give it a mix before serving.