Final answer:
The provided recipe is for a duck casserole with a bake time of 30-45 minutes, while typical walnut bread and Alfredo sauce recipes vary in cooking time, with Alfredo sauce usually taking the shortest time to prepare.
Step-by-step explanation:
Based on the recipe provided for a duck casserole, we can observe that it involves several steps including boiling duck with vegetables, removing the meat from bones, cooking rice, making a cream sauce, and finally baking the assembled casserole. The bake time is specified to be 30-45 minutes at a temperature of 350°. Unfortunately, the recipe specifics for walnut bread and Alfredo sauce have not been provided, making it impossible to determine which would take longer without additional information. However, typically, bread baking can take around 20-40 minutes depending on the recipe, while Alfredo sauce often requires less cooking time, usually around 10-15 minutes to prepare once the ingredients are ready.