Michelin-star chef José Andrés has demonstrated a method for making a fluffy omelette using a microwave, requiring only the addition of mayonnaise. The recipe involves whisking eggs with mayonnaise, microwaving the mixture for 40 seconds in a greased bowl, and then serving with toppings like parmesan and chives. Dietitians note that omelettes are highly customizable and can be a nutritious meal, with their health benefits depending on added ingredients.