Quick & Juicy Beef Stroganoff with Mushroom Cream Sauce - Zest Plate

Ingredients

• 600g scotch fillet steak/rib eye.
• 2 tbsp vegetable oil, divided.
• 1 large onion, sliced.
• 300g mushrooms, sliced.
• 40g butter.
• 2 tbsp flour.
• 2 cups beef broth.
• 1 tbsp Dijon mustard.
• 150ml sour cream.
• Salt and pepper.
• 250-300g pasta or egg noodles.
• Chopped chives for garnish (optional).