Beef-flavored broth is the robust base for a full-flavored soup loaded with beef, mushrooms and barley.
To prepare leeks, first trim off any root ends and the dark green leafy tops. Cut the white to light green bulbs in half lengthwise, and rinse all of the layers under running water to remove any dirt. Thinly slice, and you’re good to go!
Make preparation easier by purchasing sliced mushrooms from the produce section of your grocery store. There may also be a packaged assortment of sliced wild mushrooms.