Pre-heat fan-forced oven to 170C.
Prepare and cook quinoa and set aside to slightly cool.
In a large mixing bowl combine all of the base ingredients and mix well.
Press base onto the bottom and sides of a large pie dish lightly greased with olive oil (approximately 26 cm pie dish).
Flake tuna over base.
In a mixing bowl combine remaining filling ingredients, except dukkah.
Pour filling gently over tuna evenly. Top with an even layer of dukkah.
Bake in pre-heated oven for 50 minutes - 1 hour or until firm.