I swear by amonia. I use it for everything, usually diluted, but not always. It just depends on how hard the dirt is to remove. Let it sit a few minutes and use a scrubby to wipe it off. Sometimes I even use scrubbing bubbles to clean the cooked on stuff.

My two main cleaning supplies are amonia and comet. All the other products contain varying amounts of one them. Just don't ever mix the two! Hard lesson learned there! LOL