cleaning a microwave

I need some serious help in knowing how to get a bad stain out of my microwave. I burned Hamburger Helper in it and now the yellow powder has stained my microwave inside. What is an effective way to remove this stain?
Serious replies only! Please e-mail me at
Remove NOSPAM to reply!
Please reply with the subject line 'cleaning your microave'!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.