1Heat oven to 450°F. Spray 15x10x1-inch pan with cooking spray.
2In medium bowl, mix Bisquick mix, cornmeal, oregano and salt. Dip fish into yogurt, then coat with Bisquick mixture. Place in one side of pan. Toss remaining ingredients; spoon into other side of pan.
3Bake uncovered 18 to 22 minutes or until vegetables are crisp-tender and fish flakes easily with fork.