Preheat the oven to 400°F (200°C).
Peel the carrots and trim the stem ends. Slice each carrot into thirds, then cut each section into wedges of similar size.
Line a baking sheet with parchment paper if desired.
Place the carrots and chickpeas on the baking sheet.
Drizzle with canola oil.
Sprinkle with coriander, cumin, oregano, salt, cinnamon, and nutmeg.
Toss well until evenly coated.
Spread into a single layer.
Roast for 25 minutes, stirring halfway through cooking.
Meanwhile, rinse the quinoa thoroughly under cold water.
Add quinoa, water or vegetable broth, and a pinch of salt to a saucepan.
Bring to a boil, then reduce heat to low and cover.
Simmer for about 15 minutes until the liquid is absorbed.
Remove from heat and fluff with a fork.
In a small bowl, whisk together the lemon juice and honey.
Remove the roasted vegetables from the oven.
Drizzle the lemon-honey mixture over the carrots and chickpeas and toss gently.
Sprinkle with crumbled feta and walnuts.
Return to the oven for 10 minutes, or until the carrots are tender and the feta is lightly softened.
Divide the quinoa among serving bowls.
Top with the roasted carrot and chickpea mixture.
Finish with chopped green olives and serve immediately.