Regular wedding attendees may be plagued with the question, "beef, chicken or fish?" But guests at Prince Harry and Meghan Markle's royal nuptials on Saturday at Windsor Castle will be dining on a lunch of fresh, seasonal, sophisticated fare and a cake that breaks from royal tradition.

Though there have been rumors of food served in bowls (very trendy in England) as well as ice cream trucks at the second (more intimate) dinner reception held at the Frogmore House, according to Buckingham Palace the menu at the daytime reception will be "led by the freshest produce available."

"Luckily the seasons have just fallen perfectly and that's become the main focus in the decision making," said head chef of the royal household Mark Flanagan, according to the Royal Household at Buckingham Palace.

"The couple have been very involved in every detail" of the menus, said Flanagan. Indeed, in March, Harry and Markle sampled each of the dishes (made from scratch) at tasting trials held in the Windsor Castle kitchen.

Most of the produce for the menu will be sourced from the U.K., some from Her Majesty's Estates at Windsor, and others from places like Kent, which has been dubbed as the "garden" of England and Norfolk for its fertile farmland and fruit-filled orchards.

Things like asparagus and elderflower are in season in May, according to a Kent farmer's market website. And behind-the-scenes photos of royal chef Flanagan and his team in the Windsor Castle kitchen feature fresh asparagus, artichokes, peas and tomatoes.

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And Kensington Palace has announced that Harry and Markle have selected pastry chef Claire Ptak, owner of the East London-based bakery Violet Cakes, to create their wedding confection.

"Prince Harry and Ms. Markle have asked Claire to create a lemon elderflower cake that will incorporate the bright flavours of spring," the Kensington Palace said. "It will be covered with buttercream and decorated with fresh flowers."