Consequently on the satiety / palatability spectrum, the reason the OP’s friend has probably not fared so well in her quest is she has a tendency toward processed foods. “Processing”, which is a broad term that usually means taking lots of single ingredient (raw food) and turning it into a pre-prepared finished food “product” in the United States since the early 20th century has also meant doing so in a way that maximizes the palatability of the food while either intentionally minimizing the satiety or at least not being concerned with it whatsoever. The concern thus is making extremely “cravable” food, because that is to the benefit of the companies that do this processing. [The implication to me is that processing isn’t necessarily always bad, then, just that it is deliberately bad most of the time for most products.]
For someone addicted to highly palatable foods (which is the real problem), there needs to be a recognition that extreme palatability is kind of a modern invention of food science and you need to readjust your entire palate to enjoy simpler flavors.
A second and often pretty common thing could be that the OP’s friend simply is addicted to not having to make food herself. This is more difficult to work around as (and I’ve looked into this a lot) it’s very hard to build a good daily nutrition plan solely off of foods you do not have to prepare whatsoever. The closest best option is probably an approach I’ve followed before when limited on time–preparing week-size batches of food on a day where I have a spare 1.5-2 hours to do this and then pre-portioning them out and eating them over the next week. Depending on what goes into it some stuff will keep fine in tupperware in the fridge the whole week, but you may need to freeze some of it and thaw it out / microwave it later in the week based on what type of food we’re talking about.
Usually this involves a lot of chicken and ground turkey FYI, and a good seasoning are things that have basically no energy content in them and thus no macronutrient profile. I like chili based sauces like Frank’s Red Hot for example, the only thing of note with that approach is those sauces are always high in sodium. But I think the science supports that for the vast majority of people sodium intake is actually not important at all, and if you’re one of the small number of people for whom it is important you probably already know or should have seen some signs. The oft-mentioned link between sodium and blood pressure for example has been fairly exploded, with lots of studies suggesting something like less than 2% of people have elevated bp related to sodium intake.
It’s also worth mentioning the comments about brown vs white rice are mostly woo. Brown or white rice may be better, but I don’t think anyone knows for sure and like most things I suspect any difference to be almost non-existent in terms of practical effect.
The bran in brown rice contains orzenin which is not present in white rice as the bran is milled out, this is a reactive protein that causes digestion problems in some persons–particularly those persons likely to complain that they have gluten insensitivity (whether they do and/or whether it exists or not outside of celiac disease.) Meaning the substitution of brown to white rice for those persons may not be so great just in terms of having happy digestion. Additionally the added nutrients in brown rice are bound to phytate and do not get absorbed by the body during digestion, meaning the supposed positives of brown v white rice may not be realizable in how we actually digest rice and if your digestive system reacts negatively to the reactive proteins present in brown rice that aren’t there in white rice it may be a straight net negative to your daily life to be doing brown over white.
I think if that’s not the case, they are essentially similar nutritionally. I personally prefer brown from a taste perspective, I made it a staple years ago before I knew that they were basically a wash for most people and I guess I’ve just acclimated to it, I don’t enjoy white rice so much at all when I do have it (not saying I dislike it, just that I don’t prefer it to brown.) But if I was having digestion problems from it I would try white instead.
Rice in general is often vilified by the paleo / GI slave people, but most of the studies supporting those positions just show that people with rich diets in Asia who also consume a lot of white rice have some negative health impacts. I don’t know of many / any studies of actual fit healthy people who make white rice a part of their staple diet and that’s a big problem in nutritional studies. When your study has poor ability to control for the fact most of the people you’re studying are unhealthy and in poor shape to me it minimizes much of the value of the science.
Not to mention we also have a real problem where doctors and their organizations adopt nutritional guidelines based off single studies which are deeply flawed. Like the single study that basically lead to a generational vilification of saturated fat and which is almost entirely responsible for pushing people to high in trans fat alternatives.