Combine water and quinoa in a large saucepan over medium-high heat. Bring to the boil. Reduce heat to low. Cover and simmer for 12-15 minutes or until the liquid is absorbed. Transfer to a large bowl. Set aside to cool.
Meanwhile, preheat a large chargrill on high. Spray lightly with oil. Cook the asparagus for 2-3 minutes or until tender crisp. Add the asparagus, capsicum, feta, sunflower seed kernels, shallot and parsley to the quinoa.
Whisk the lemon juice, honey, oil and paprika in a small bowl until well combined. Add the dressing and rocket to the quinoa mixture. Season with pepper and toss to combine.