→ Beef & Marinade
01 - 400 g (14 oz) beef strips (sirloin or rump)
02 - 1 tablespoon vegetable oil
03 - 1/2 teaspoon salt
04 - 1/4 teaspoon black pepper
→ Vegetables
05 - 1 medium onion, thinly sliced
06 - 200 g (7 oz) white mushrooms, sliced
07 - 2 cloves garlic, minced
→ Sauce
08 - 2 tablespoons all-purpose flour
09 - 250 ml (1 cup) beef broth
10 - 120 ml (1/2 cup) sour cream
11 - 1 tablespoon Dijon mustard
→ Wraps
12 - 4 large flour tortillas
→ Garnishes
13 - 2 tablespoons fresh parsley, chopped (optional)