var food = {}


$("button").click(function(){
  food={}
  $("span").text("")
	$("#mytable tbody tr").each(function(){
		var key = $(this).children("td").eq(0).text()
		var value = $(this).find("input").val()
    food[key]=value
	})
  
  for(key in food){
    $("span").append(key+":"+food[key]+"||")
  }
})