Heart Healthy Orange Pork and Broccoli Stir-Fry

2 pork tenderloins (1 1/2 to 2 pounds total), 4 skinless, boneless chicken-breast halves, or 1 1/2 pounds skinless salmon fillet -- meat or fish cut into bite-size pieces 2 tablespoon sherry or white wine 1/2 teaspoon crushed red pepper flakes 4 tablespoons cornstarch 1 orange, zest grated and juice squeezed 1/2 cup chicken broth 2 tablespoons soy sauce 2 teaspoons sugar 2 tablespoons canola oil 1 onion, cut into thin wedges 1/2 bunch broccoli (1/2 pound), cut into small pieces, stalks peeled and thinly sliced (3 cups) In a bowl, toss the meat or fish with the sherry, red pepper, and 2 teaspoons of the cornstarch. In a measuring cup, combine the orange juice, chicken broth, soy sauce, sugar, and the remaining cornstarch. In a large nonstick skillet or wok, heat the oil over medium-high heat. Add the orange zest and let it sizzle for 1 minute. Add the onion and the meat or fish and cook, stirring, until cooked through, 2 to 5 minutes. Add the orange-juice mixture and broccoli. Simmer 5 minutes or until the broccoli is tender. Yield: 4 servings Recipe courtesy of Real Simple