INGREDIENTS
1 1/2 lbs
sirloin steak
2 tsps
salt
2 lbs
cremini mushrooms
2 tbsps
olive oil
1 large
yellow onion
2 cloves
garlic
4 tbsps
unsalted butter
1/4 cup
flour
2 cups
beef broth
2 tbsps
fresh thyme
1 tbsp
worcestershire sauce
1 tbsp
dijon mustard
1/2 cup
full-fat milk
1/2 tsp
pepper
1