I make these for meal prep ALL THE TIME! My preferred method to reheat them is in the air fryer (350° for 3-4 minutes) so the prosciutto gets crispy again, but I've reheated them in the microwave too. If you're a person who just doesn't like reheated eggs, then ideally, you'd want to eat them immediately after serving. For more egg meal prep, check out my air fryer boiled eggs!