While I'm not a big White Castle fan (blasphemy, I know), I do love burgers and it is hard to resist those little bundles of joy we call sliders. Several months ago, my friend Spryte posted this easy recipe for an easy version of the White Castle. It looked marvelous. It is marvelous. And it takes a total of 25 minutes from start to finish, with no mess. Check out Spryte's post here: Spryte's White Castle Style Sliders
Start by adding some of those dehydrated onions to the bottom of a pan.
The original recipe calls for 2 pounds of ground chuck (use something not too lean--the fat helps to reconstitute the onions) and a 9 x 13" pan, but since I was making this for just Pete and me, I halved the recipe and used an 8" square pan.
Use whatever seasoning floats your boat. I like this Trader Joe's stuff.
Just pat the meat over the onions, sprinkle it with seasoning salt, and bake it for 20 minutes at 400 degrees (I probably could have baked it 5 minutes more since my layer of meat was a tad thicker). Blot any excess fat off of the top. Add some cheese slices to cover and pop it back into the oven for a few more minutes to melt the cheese. Then just cut it into squares (I made nine--the original recipe called for 24 in the bigger pan, so mine were just a bit thicker). Using a spatula, scoop up a burger square with some of the onion, pop it on one of those tasty Hawaiian rolls, add a pickle if you wish, and voila! a White Castle look alike (albeit tastier).
No fuss, no muss---these babies are good!