Preheat oven to 220C. Line a tray with baking paper and arrange orange slices in one layer.
Mix fennel, cumin, chilli and honey with half the oil and season with salt. Spoon over the orange slices, spreading with the back of a spoon to cover. Roast for 15-20 minutes, until caramelised and a wee bit charred.
Cook the spelt according to directions, until done, then drain. Return to the pan, add garlic, remaining olive oil and lemon juice and toss together well. Set aside for 10 minutes to cool.
When cooled slightly, stir in orange slices, carrot, dill and mint, season, and serve.