She should get one of these:


Invented by an 8-year-old girl and manufactured/marketed by her dad. Works great, I've got one. You lay a paper towel sheet over it before microwaving to stop splatters:

You can find them for sale in many drugstores, or buy from their website.
And the picture shows incomplete coverage near the bottom, and no coverage at all on the slides. Bacon doesn't splatter horizontally? Unless it has side guards.

