Preheat oven to 400F. Cook orzo according to package directions. Drain accordingly. Mix all other ingredients in a large bowl, then stir in orzo. Pour into cooking-sprayed casserole dish or 9x13 pan. Sprinkle with lemon pepper. (This really added a nice flavor, so if you don't have lemon pepper, I would recommend using some other spice to perk up the flavor. It might be a little bland without it.) Cover and bake for 15-20 mins., until heated through.