1. dessert, because breakfast, lunch, and dinner are meals, while dessert is a type of food eaten at the end of a meal.
2. lemon, because jam, honey, and sugar are all sweet foods.
3. order, because boil, fry, and bake are methods of cooking, while order is an instruction to provide something.
4. drink, because starters, main courses, and desserts are courses of a meal, while drink is a beverage.
5. bread, because fibre, iron, and vitamin are nutrients, while bread is a food.