Yes, many ingredients like the julienned vegetables, beef, and eggs can be prepared a day ahead and stored separately in the refrigerator. Assemble just before serving for the freshest taste and presentation.
What can I substitute for the beef?
For a vegetarian option, you can omit the beef and add more mushrooms or other firm vegetables like zucchini. For pescatarians, finely shredded cooked shrimp or white fish could be an alternative.