All-in-one-pan beef stroganoff

Name: All-in-one-pan beef stroganoff
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: European, Eastern European
Ingredients: 2 tablespoons extra virgin olive oil; 600g beef rump steak, trimmed, thinly sliced; 1 large brown onion, halved, cut into thick wedges; 200g cup mushrooms, halved; 2 garlic cloves, crushed; 1 tablespoon smoked paprika, plus extra to serve; 2 tablespoons Worcestershire sauce; 2 tablespoons tomato paste; 3 cups Massel beef stock; 300g dried angel hair pasta; 2 zucchini, cut into ribbons; 2/3 cup sour cream; 1/4 cup chopped fresh flat-leaf parsley, to serve