Step 1Place the orange juice, sugar and lemon juice in a small saucepan and cook over medium-high heat until reduced to 1/4 cup. Stir in the miso; set aside.
Step 1Combine the soy sauce, lemon juice and garlic; set aside.
Step 1Heat the oven to 500 degrees.
Step 2Coat a large baking pan or rimmed baking sheet with cooking spray. Season the fish with salt and pepper and place in the pan. Brush with the Miso Glaze. Bake until the fish begins to flake, about 6 to 8 minutes. It will continue to cook when removed from the oven, so do not overbake.
Step 3Meanwhile, steam the carrots and broccoli until tender, about 10 minutes for the carrots and 8 minutes for the broccoli.
Step 4Place some rice in the center of each of 6 warmed plates and top with a piece of fish. Top the fish with a few green onions and a splash of the Ponzu Sauce. Arrange the vegetables as you wish.