→ Beef
01 - 1.1 lb beef sirloin or tenderloin, cut into thin strips
02 - 1/2 tsp salt
03 - 1/4 tsp black pepper
→ Vegetables
04 - 1 medium onion, finely chopped
05 - 10 oz cremini or button mushrooms, sliced
06 - 2 cloves garlic, minced
→ Sauce
07 - 2 tbsp unsalted butter
08 - 2 tbsp olive oil
09 - 2 tbsp all-purpose flour
10 - 1 cup beef broth
11 - 1 tbsp Dijon mustard
12 - 2/3 cup sour cream, at room temperature
13 - 1 tbsp Worcestershire sauce
14 - Salt and pepper, to taste
→ To Serve
15 - 9 oz egg noodles, cooked according to package instructions
16 - 2 tbsp fresh parsley, chopped (optional)