While warming up some leftover lasagna I heard an explosion in there that resulted in something like you see in the accompanying illustration. Being hungry, I resolved to enjoy my dinner and clean the oven later. Of course I then forgot about the oven until the next day when I discovered a greasy mess now made worse because the hot lasagna had now solidified. Nothing to be done but to clean it up.
My tried and true method is to squeeze about 2 tablespoons of lemon juice into a microwaveable bowl along with about a third of a cup of water. Run the oven on high for about 4 minutes, until it gets nice and steamy in there and then wipe the oven out with paper towels. The gunk comes right off and the food smells are gone. I am always happily surprised at how easy it is and wonder why I don’t do it more often.
Now here is a great mystery? Why is it that ALL microwave ovens open from right to left? The kitchens in the two homes I’ve lived in for the last 15 years would benefit from a microwave that opened left to right. But none are to be found.