Hamburgers <a href="http://www.reddit.com/r/science/comments/8psog/less_than_15_meat_fast_food_burgers_what_are_we/c0a1y1a">really should</a> have filler.  But what kind of filler is best?

<ul>
<li>breadcrumbs
<li><a href="http://answers.yahoo.com/question/index?qid=20081226025347AATfQaT">rice</a>
<li>oatmeal
<li><a href="http://www.dailyspark.com/blog.asp?post=calorie_savers_the_meat_edition">soy crumbles</a>
</ul>