In bowl, mixing ground beef with contents onion soup sachet, breadcrumbs and the egg. Salt also pepper. Shapping 4 patties with preparation.
In a large skillet, heat olive oil over medium heat. Browning beef patties for 2 to 3 min on every side. Reserve on a plate.
In the same pan, cook the onion and, if desired, the mushrooms for 4 to 5 minutes.
Adding brown sauce & bring to a boil.
Adding patties and simmer for 8 to 10 minutes on low heat.
Enjoy !
