I have been following a tutorial on creating a food ordering app.
In the tutorial, there is a restaurant model file that includes the the menu items.

` final List _menu = [

Food(
  name: 'Classic Burger',
  description: 'A half pounder with all the fixins.',
  imagePath: 'lib/images/burgers/burger1.jpg',
  price: 10.99,
  category: FoodCategory.burgers,
  availableAddons: [
    Addon(name: 'Extra cheese', price: 0.69),
    Addon(name: 'Bacon', price: 1.09),
    Addon(name: 'Avocado', price: 2.25),
  ],
),`

then the getter is

List<Food> get menu => _menu;

I would like to get this data from firestore.
I have created a collection named ‘menu’

enter image description here

I have created this future method in the same dart file.

Future<List> getMenuData() async {
CollectionReference menu = FirebaseFirestore.instance.collection(‘menu’);

// Get docs from collection reference
// QuerySnapshot querySnapshot = menu.get() as QuerySnapshot<Object?>;
QuerySnapshot querySnapshot = await menu.get();

// Get data from docs and convert map to List
final allData = querySnapshot.docs.map((doc) => doc.data()).toList();

return allData as List<Food>;

}

I then updated the getter to

List<Food> get menu => getMenuData();

This generated compile error
A value of type ‘Future<List>’ can’t be returned from the function ‘menu’ because it has a return type of ‘List’.

So how can I get the menu loaded from firestore instead of hard coded in the model file?