When ordering the Kids' Lunch at Burger Universe, the customer must choose a size, whether or not to have cheese, a type of bun, a side order, and a type of fruit drink.

Choose wisely; the kid probably won't like it anyway.

To order the Kids' Lunch at Burger Universe, the customer needs to make the following choices:

1. Size: The customer must choose the size of the Kids' Lunch. Usually, there are options like small, medium, or large. The customer can choose the size based on their child's appetite or preference.

2. Cheese: The customer should decide if they want cheese on the burger or not. This choice depends on the child's preference or any dietary restrictions they may have.

3. Bun: The customer needs to select the type of bun they want for the burger. Common options include sesame seed bun, whole wheat bun, or gluten-free bun. This choice can depend on the child's preference or any dietary restrictions.

4. Side Order: The customer should choose a side order to accompany the burger. Typical side order options include french fries, sweet potato fries, or a small salad. The choice can depend on the child's preference or any dietary considerations.

5. Fruit Drink: Lastly, the customer needs to select a type of fruit drink for the Kids' Lunch. Options may include apple juice, orange juice, pineapple juice, or a fruit smoothie. The choice can be based on the child's preference or any dietary restrictions.

When ordering, the customer can ask the server for recommendations based on the child's taste preferences and dietary needs.