Preheat the oven to 180' and place pumpkin pieces into an oven dish and cover with tinfoil and bake till softened.
In a pot cook quinoa until tender, drain and set aside in a large mixing bowl.
Place oats into your food processor and blitz till fine and sandy, place into a large bowl and set aside.
Saute onion and garlic until softened and place into a large bowl.
In a food processor, blitz pumpkin till smooth, scrap out into a large bowl with onions to cool.
Put all remaining ingredients into the food processor – chickpeas, walnuts, tomato paste, spices and salt and blitz to create a chunky mash texture. Place this into the bowl with all other ingredients and mix to combine everything together (pumpkin, quinoa, oats, chickpeas etc).
Shape into 6 patties and chill to firm up.
Cook in a pan until each side is golden.
Toast Paneton baps on the cut side and assemble with pumpkin pattie and toppings.