Clean, wash and chop the spring onions. Clean mushrooms, wash and halve. Wash, clean and halve the tomatoes. Peel garlic and crush finely. Cut meat into thin slices.
Heat oil in a pan and fry meat in it. Season with salt and pepper and remove. Fry the mushrooms and garlic in the frying fat. Sauté spring onions and cherry tomatoes briefly.
Stir starch and orange juice until smooth, add to vegetables and bring to the boil briefly. Add meat again, heat up again briefly and season with salt and pepper. Garnish with parsley.