Cut the hanger steak into bite-sized pieces.
Prepare the vegetables such as broccoli, onion, and carrot.
Heat olive oil in a pot and stir-fry the hanger steak.
Add the prepared vegetables and stir-fry together.
Pour in 400ml of water and add tomato sauce or crushed tomatoes.
Season with salt, pepper, and other seasonings.
When it boils, reduce to medium-low heat and simmer for 15 minutes.
Serve the finished soup in a bowl.