How to Make It
Preheat oven to 400°F. Combine asparagus, oil, a pinch of salt, and several grinds of pepper on a rimmed baking sheet; toss to coat. Roast in preheated oven until tender-crisp and bright green, 10 to 12 minutes.
Toss together walnuts, coconut oil, turmeric, and a pinch of salt and pepper on a baking sheet lined with parchment paper. Toast at 400°F until fragrant, 4 to 6 minutes. Let cool, about 5 minutes.
Combine walnut mixture, flax seed meal, and a dash of salt in a food processor, and pulse until crumbs form (mixture should look like bread crumbs). Sprinkle ½ cup crumble on top of asparagus; reserve remaining crumble for another use.