Preheat the oven to 375°F.
Add the carrots, garlic, and shallot to a sheet pan. Drizzle generously with olive oil and season with salt, pepper, and harissa. Toss to coat evenly.
Roast for 30–40 minutes, or until the carrots are fork-tender and lightly golden.
Meanwhile, add the feta and yogurt (or whipped cream cheese) to a food processor or mini blender. Blend until smooth and creamy. Season with salt, pepper, or a drizzle of olive oil if you like. Set aside.
Chop the pistachios and herbs.
In a small bowl, stir together the honey and 1/8 tsp harissa (add more if you want it spicier).
To serve, spread the whipped feta onto a plate or shallow bowl. Arrange the roasted carrots on top. Drizzle with harissa honey, then sprinkle with pistachios, pomegranate arils, and parsley. Finish with a final drizzle of honey and serve warm.