Preheat oven to 350°Stir together cooked quinoa, salmon, onion, chives, and the garlic in a large bowl. Stir together panko breadcrumbs, salt, pepper, paprika and 1 teaspoon lemon juice and egg whites, corn oil, stirring until combined.
Generously coat 8 jumbo muffin cups with cooking spray or oil.
Divide the salmon-panko mixture evenly among the prepared cups, using a heaping ⅓ cup in each cup.
Bake about 25 minutes or until the tops are golden and a thermometer inserted in center of a cup registers 160°F.
Cool in the muffin cups on a wire rack for 10 minutes.
Make Lemony mustard sauce by stirring together ½ cup yogurt, ½ tablespoon mustard, ½ teaspoon lemon juice, ¼ teaspoon salt, ¼ teaspoon pepper, and the remaining 1 tablespoon chives.
To serve, divide spring leaves mix among 4 serving plates. Run a knife around the edges of each salmon cup to loosen; remove from the muffin cups. Arrange on top of the leaves mix. Serve with lemon wedges and lemon-mustard sauce.