Get out all of your ingredients.
Chop your onion.
Slice your mushrooms.
In a large pot, over medium high heat, melt butter.
Brown your sliced beef for 3 or 4 minutes.
Reduce heat to medium, add flour and stir until smooth.
Add the onion, mushrooms, carrot and celery.
Cook for about 10 minutes.
Add undrained canned tomatoes, broth and Worcestershire sauce.
Add salt, pepper and gravy browning if you prefer a darker colored broth for your soup. Simmer for between 1 and 1 ½ hours.
Taste your soup to make sure it has enough salt and pepper. Add cream 5 minutes before you are finished cooking.
Sprinkle chopped fresh parsley on top.
Serve and enjoy!