Brush both sides of the turkey with 1 tbs olive oil. Cook in batches for 2 minutes each side.
Heat remaining olive oil. Add garlic and sauté for 30 seconds. Add lemon juice, mustard, capers and stock and bring to the boil. Reduce heat to simmer for 2 to 3 minutes. Meanwhile
Steam green beans for 3 minutes. Return turkey to the pan with the juices. Add parsley and cook for a further minute. Serve turkey on mixed grain rice with beans and lemon garlic sauce.