Split by cuisine before splitting by date. Somebody who wants to make sushi is not weighing it up against a bread class; they have already decided what the evening is, and a page headed "our classes" asks them to do the sorting themselves.
Write the occasion pages as bookings rather than as classes. A hen party is a date, a headcount and one person organising who will be judged on how it goes, and that person needs price per head, what's included and how late it runs before anything else.
Answer the dietary question in the open. A group of eight books together, and if one of them cannot eat gluten and the page says nothing, all eight go somewhere else — the cost of silence here is the whole booking, not one seat.
Promise a skill, not a dinner, on the technique pages. Somebody learning to handle a knife properly or to keep a sourdough starter alive has a reason to come back in three months, and that second booking is where the school actually makes its money.