In a large mixing bowl whisk egg until well blended. Add parsley, coriander, green onion, chives, dill, flour, barberries (optional), walnut (optional), olive oil, salt and pepper; mix ingredients well until fully combined.
Grease and oven mini-cupcake pan vegetable oil. Evenly pour the batter into the baking pan, fill 2/3 full, and bake for 15 minutes.