Step 1

Toss beef in a bowl with paprika and some salt and pepper. Heat oil in a large frypan over medium-high heat, then brown beef in batches for 2-3 minutes. Remove with a slotted spoon and set aside.

Step 2

Reduce heat to medium, then add onion and cook, stirring, for 5 minutes until soft and light golden. Increase heat to high, add the mushrooms and cook, stirring, for 2 minutes or until lightly browned. Add stock and Worcestershire and bring to the boil. Simmer gently over low heat for 5 minutes or until sauce is reduced slightly. Stir in sour cream, return beef and any juices to pan, then cook for 1-2 minutes until thickened. Meanwhile, steam the green beans for 3 minutes or until tender.

Step 3

Divide the stroganoff and beans among bowls, sprinkle with chives and serve with wholegrain toast.