Spread chopped pumpkin on a tray using baking paper and sprinkle some salt and pepper over and roast at 200C for 20 minutes, then add the walnuts and cook for a further 5 minutes.
While that's happening cook your quinoa, it tastes great if you use stock to cook it instead of water.
Toss spinach and quinoa with some dressing and place pumpkin and walnuts on top, salt and pepper to taste.
Recipe Note
This recipe is also excellent with Pine Nuts instead of Walnuts.