An Everlasting Meal is also a great book.
Six months ago, I went looking for cooking classes in Lincoln and came up disappointed.
Slightly off-topic, but the book "An Everlasting Meal" changed the way I cook at home. If you follow the book's advice, you'll learn to stock your fridge/pantry and cook with what you have available – including leftovers.
Fair warning: it's not a recipe book (though there are some recipes). It's mostly prose, which may or may not be your thing.
Best of luck!