Cooking for Royalty gets more difficult the further we get through this list. We're starting to regret inviting the Queen around for dinner. As well as taking shellfish and garlic off the menu, you can also forget about potatoes, rice or pasta. Those are all foods that can leave you feeling very full after eating, so we imagine it's just a case of the Royals not wanting to feel like they've gained weight after each meal. We don't know if the potato ban extends to fries, but as we can't imagine the Queen dipping fries into tomato ketchup, we'll guess it does.
This information also comes from former Royal chef John Higgins, who explained that when he was making supper for the Queen, he was likely to go with a tried and trusted favorite like grilled sole with a vegetable salad, which was always well received.