Heat oven to 375ºF. Spray shallow baking pan with cooking spray.
Pat salmon dry with paper towel. Place salmon skin side down in pan; brush with 1 tablespoon of the butter and sprinkle with garlic salt.
Mix bread crumbs, Parmesan cheese, green onions, lemon peel and thyme in small bowl. Stir in remaining 1 tablespoon butter. Press bread crumb mixture evenly on salmon fillets.
Bake uncovered 15 to 25 minutes or until salmon flakes easily with fork. Serve immediately in a bed of cooked spinach, rice or pasta.