Can this code be improved and how?

sum = 0

# Restaurant Class
class Restaurant():
    def __init__(self, restaurant):
        self.restaurant = restaurant

    def getallrestaurant(self):
        return self.restaurant

# Ingredients 
class Ingredient():
    def __init__(self, ingredients):
        self.ingredients = ingredients

# Dish Class       
class Dish():
    def __init__(self, dishes):
        self.dishes = dishes

    def getalldishes(self):
        return self.dishes


if __name__ == '__main__':

    restaurant = [{
        'id': 1,
        'name':'\nAli Resturant',
        'dishes':[1,2,3,4,5]
        }]
        
    ingredients = [
        {
            'id' : 1,
            'name' : 'Pizza'
        },
        {
            'id' : 2,
            'name' : 'Burger'
        },
        {
            'id' : 3,
            'name' : 'Fries'
        },
        {
            'id' : 4,
            'name' : 'Drink'
        },
        {
            'id' : 5,
            'name' : 'Noodle'
        }
    ]

    dishes = [
        {
            'id' : 1,
            'name' : 'Pizza',
            'ingredients' : [1],
            'price' : 1500
        },
        {
            'id' : 2,
            'name' : 'Burger',
            'ingredients' : [2],
            'price' : 350
        },
        {
            'id' : 3,
            'name' : 'Fries',
            'ingredients' : [3],
            'price' : 150
        },
        {
            'id' : 4,
            'name' : 'Drink',
            'ingredients' : [4],
            'price' : 100
        },
        {
            'id' : 5,
            'name' : 'Noodle',
            'ingredients' : [5],
            'price' : 250
        }
    ]

restaurant_obj = Restaurant(restaurant)
ingrediants_obj = Ingredient(ingredients)
dish_obj = Dish(dishes)




 # start while loop and start taking orders


# Restaurant Name Get
getrestaurant = restaurant_obj.getallrestaurant()

for rest_name in getrestaurant:
    print(rest_name['name'])

print ("\n==========Menu============\n")

# Dishes Name Get
getdishes = dish_obj.getalldishes()

for dish in getdishes:
    print(dish['name'])

while (True):
    order = input("\nEnter your Order =  " )

    if order == 'E':
        break

    # find Same Name in Dishes class
    find = [item for item in getdishes if item.get('name')== order]
    
    #Sum and Calculate the Order and give Billing
    if len(find):
        sum = sum + find[0]['price']
        print ("\nAdd More Dishes OR Press E for Bill! ")
    else:
        print("\nEnter Right Item\n")
    
print("\nThanks For Order\nYour total bill is = " ,sum)