My experience is several years old, but we did the cruise tour with the meal plan and I am so glad we did. You could order whatever you wanted. Appetizer, entree and dessert. No alcohol, I do remember that. I do not remember if tea and/or coffee was included, as we both drink water with our meals.
If you looked at the prices on the menu, they were terribly expensive and we probably would not have eaten as well as we did if we had had to pay the menu prices.