Place the oil, mushrooms, onion and spring onion to the pan over a medium heat and fry for 5 minutes or until soft.
Stir in the Fate Low Protein All-Purpose Mix.
Add the ProZero to the pan, stir and simmer for 10 minutes or until reduced.
Season to taste and serve on top of the toast.
Add some chopped tarragon as a garnish.
Refer to labels for allergen and other product information.
Fate Low Protein All-Purpose Mix and ProZero is a food for special medical purposes and must be used under medical supervision.