Trim the leeks, keeping only the white and light green parts.
Halve lengthwise and clean thoroughly between layers.
Pat very dry and place cut-side up on a lined baking sheet.
Drizzle with olive oil and season with salt and pepper.
Remove the foil.
Flip the leeks cut-side down for better color, if desired.
Continue roasting for 10–15 minutes, until tender and lightly caramelized.
While still warm, gently toss the leeks with 1 teaspoon of balsamic Dijon mustard. Set aside.
Rinse the quinoa well under cold water.
Add the quinoa, vegetable stock, and bay leaf to a small pot.
Bring to a boil, then reduce to a gentle simmer.
Cover and cook for 12–15 minutes, until the liquid is absorbed.
Remove it from the heat, discard the bay leaf, and let it stand for 5 minutes.
Fluff the cooked quinoa with a fork and stir in a little olive oil and a pinch of salt while warm.
Heat a small skillet over medium heat.
Add the walnuts.
Toast for 2–3 minutes, stirring often, until fragrant.
Drizzle with honey, then add a pinch of salt and black pepper.
Remove from heat and let cool slightly.
In a small bowl or jar, whisk together: olive oil, balsamic, Dijon mustard, lemon juice, honey, and black pepper.
While the quinoa is still slightly warm, toss with most of the vinaigrette.
Add the walnuts, pomegranate arils, dill, chives, and feta, folding lightly.
Transfer the salad to a serving platter.
Arrange the leeks on top.
Sprinkle with feta, dill, and chives.
Drizzle with the leftover dressing.
Finish with flaky salt and pomegranate arils.
Notes
Roast at a slightly lower temperature – a moderate oven temperature gives the leeks time to soften before browning. If they darken too quickly, lower the heat or cover them again.Rinse quinoa thoroughly – quinoa has a natural bitter coating. A quick rinse in cold water ensures a clean, nutty flavor.Cook quinoa gently – once boiling, reduce to a gentle simmer. Aggressive boiling can split the grains and make them mushy.