→ Beef and Sauce
01 - 1 1/2 pounds sirloin or flank steak, thinly sliced against the grain
02 - 2 tablespoons olive oil, divided
03 - 1 medium onion, thinly sliced
04 - 3 cloves garlic, minced
05 - 12 ounces cremini or button mushrooms, sliced
06 - 2 tablespoons all-purpose flour
07 - 2 cups beef broth
08 - 1 cup dry white wine or extra beef broth
09 - 1 tablespoon Worcestershire sauce
10 - 1 teaspoon Dijon mustard
11 - Salt and freshly ground black pepper, to taste
→ Noodles and Garnish
12 - 8 ounces wide egg noodles
13 - 1/2 cup sour cream, at room temperature
14 - 2 tablespoons chopped fresh parsley