In large bowl, mix eggs, milk, cream, sugar, orange rind and vanilla; set aside.
Cut croissants into 1 1/4 inch cubes; evenly scatter half in greased 13 x 9 inch glass baking dish. Spoon cranberry sauce evenly over top; scatter with remaining cubes. Gently pour milk mixture over top; let stand for 15 minutes, pressing occasionally. (Make ahead: Cover and refrigerate for up to 12 hours.).
Bake in 350°F oven for 50 minutes or until puffy and knife inserted in centre comes out clean. Makes 8 to 10 servings.