[ Ruby ] Make a burrito

burrito.rb

class Burrito
  attr_reader :fillings
  def initialize(*fillings)
    @fillings = fillings
  end
  
  def to_hash
    { burrito: { filling: fillings.map(&:to_s) } }
  end
  
end

class Chicken
  def to_s
    "delicious chicken"
  end
end

class Cheese
  def to_s
    "mild cheddar"
  end
end

class Beans
  def to_s
    "black beans"
  end
end

class Rice
  def to_s
    "brown rice & cilantro"
  end
end

burrito = Burrito.new(Chicken.new, Cheese.new, Beans.new, Rice.new)

puts burrito.to_hash

{:burrito=>{:filling=>["delicious chicken", "mild cheddar", "black beans", "brown rice & cilantro"]}}