In a saucepan, combine the first eight ingredients; bring to a boil.
Reduce heat; simmer, uncovered, until vegetables are crisp-tender, stirring occasionally, about 5 minutes.
Place fish in a greased 13-in. x 9-in. x 2-in.baking pan.
Pour vegetable mixture over the fish.
Cover and bake at 350° for 30 minutes or until fish flakes easily with a fork.