→ Beef
01 - 1.1 lbs beef sirloin or tenderloin, thinly sliced
02 - 1/2 teaspoon salt
03 - 1/2 teaspoon black pepper
→ Vegetables & Aromatics
04 - 2 tablespoons unsalted butter
05 - 1 tablespoon olive oil
06 - 1 medium yellow onion, finely chopped
07 - 3 garlic cloves, minced
08 - 10 oz cremini or white mushrooms, sliced
→ Sauce
09 - 2 tablespoons all-purpose flour
10 - 1 cup beef broth
11 - 1 tablespoon Dijon mustard
12 - 1 tablespoon Worcestershire sauce
13 - 1/2 cup sour cream, plus extra for serving
14 - 1 tablespoon fresh parsley, chopped, plus extra for garnish
→ To Serve
15 - 10 oz wide egg noodles, cooked per package instructions