To be fair, there are a lot of suggestions that I think are borderline or even past the line. Just because we like some games it doesn’t mean they are good recommendations for entirely different types of people, but that’s a trap it’s just so easy to fall into. And, it’s up to the OP to pick what they think are fitting suggestions out of the pile, so it’s fine anyway.
My own, Stardew Valley, qualifies as one of them, I believe, because of the control scheme. IMO it’s as much a game mum-friendly game as I can think of, while being definitely NOT the kind of casual ordinary gamers would consider the wrong kind and look down on, which would be more or less what Little Inferno goes/is modeled after.
And it’s nowhere near dialog heavy in the goodness-sake-do-not-recommend-Pillars-of-Eternity-or-any-Spiderweb-game that I took the OP as. In fact I should think most people who can follow a Hollywood movie will have absolutely no problem with it, though IMO that level would definitely be regarded that as great English proficiency in many instances.
OTOH the control scheme says pretty much “I have game literacy”. Many, above a certain age, are absolutely useless (I am not passing judgment, merely making a relative assessment) with the standard WASD + mouse control set.
And by “certain age” I certainly don’t mean 60+, I’ve personally witnessed much younger folks short circuit when asked to interact KBM. Younger then me, for sure.
In that vein, I actually have some reservations on the fine lady not deserving a controller, especially with a previous history of using one. A wired 360 pad should be cheap enough (don’t have to buy a Microsoft one to dip one’s toes) to warrant the, big word incoming, investment, barring any pre-existing ideological resistance to controllers.
A controller also lowers the bar for accessibility for a number of games that require that kind of literacy to be played on KBM and suddenly become a cakewalk on a controller.
(But sadly, Stardew Valley isn’t a great experience on a controller, I went back to KBM myself and I say that as someone who plays first person games on a controller).
So, well, now, to end this post with an actual recommendation, I will add Battlechef Brigade, a clever take on Match-3.
And for something entirely different, if she doesn’t mind playing games while doing something else, clicker-type games are also worth considering. There are many clever takes on the genre which are actually worth playing for anybody who are open-minded about the genre
I haven’t kept up with the latest developments, so Cookie Clicker will have to do.