Preheat oven to 220℃ (200℃ fan forced). Line a baking tray with baking paper and arrange pumpkin onto tray. Drizzle with grapeseed oil and sprinkle with combined spices and salt and pepper. Toss well to coat. Bake in the oven for 45 minutes or until pumpkin is tender and caramelised. Allow pumpkin to cool slightly before making the salad.
To serve, sprinkle half of the barley over a serving plate. Arrange slightly cooled cooked pumpkin over the top. Sprinkle with remaining barley and the pepitas. Dollop over the yoghurt.
Combine herbs in a bowl with lemon juice and olive oil. Season lightly and toss to coat. Sprinkle them over the salad along with the almonds. Serve immediately.