In a small bowl, combine the lemon juice, oil, parsley, pepper and salt. Thread the broccoli, onion, salmon, garlic cloves and squash onto 24 small wooden skewers; spoon lemon juice mixture over kabobs.
Place skewers in a steamer basket; place in a large saucepan over 1 in. of water. Bring to a boil; cover and steam for 12-15 minutes or until salmon flakes easily with a fork and vegetables are crisp-tender. Yield: 2 dozen.