I don't think there's a lot of logic about what most of us eat - though the important thing here is whether there's any conflict between one person's perceived 'gluttony' (wanting toast for breakfast is 'disgusting') and meeting children's nutritional needs.
But I would point out that some vegetarian staples that are marketed as natural and health - such as Quorn (mycoprotein) - which was mentioned above, are highly processed. To quote one article.
"Mycoprotein is a highly processed product, produced by means of a fermentation process, which starts off with a natural type of fungus, Fusarium venenatum.
The fungi are put into a fermentation vat where they are fed glucose, oxygen, carbon dioxide, nitrogen, as well as vitamins, minerals and other secret ingredients.
These elements allow the fungi to grow while the vat is kept at a constant temperature.
Once it reaches its desired size, egg and seasoning are added to the mixture, which is cooked and turned into chunks.
It is then frozen, resulting in a structure resembling meat."