Preheat oven to 200ºC.
Cut pumpkin into small cubes, toss in 1 tablespoon of macadamia or olive oil, season with salt and pepper and cook in the oven for around 20 minutes or until tender and golden.
Place baby spinach in a big bowl. Slice the red onion very finely, cut the roma tomatoes in half and add onion and tomatoes to the baby spinach.
For the dressing.Combine 1 tablespoon of macadamia or olive oil, 1 tablespoon of balsamic vinegar and ½ tablespoon of lemon juice in a small bowl and season with salt and pepper to taste.
Once the pumpkin is cooked and while still hot, add to the bowl of spinach, onion and tomatoes and give a quick mix. Then, crumble the goats cheese on top, pour over the dressing and mix very gently again.
Place salad onto a serving plate leaving excess dressing behind.
Crush the macadamias with something heavy inside a clean tea towel and sprinkle over salad.