Start preheating your oven now for this roasted asparagus recipe. Roasting asparagus concentrates the flavor and even brings out its earthy sweetness. While the asparagus is doing its thing in the oven, you’ll be making a flaxseed walnut crumble to dress the crisp tender and bright green spears. The turmeric crumble is packed with omega-3s from the flaxseeds and walnuts. You’ll want to add this healthful topping to more than just asparagus. Use it top other roasted or raw vegetables or mix into a salad.