I may have reacted rather vehemently but that’s because of the ridiculous lengths some people will go to on here to dress up their sanctimony/judginess/hangups about food as ‘concern’ for others.
And tbh your premise as it stood in the op was quite ridiculous anyway because if you were truly concerned about eating ‘good foods’ you should really have swerved the pastry and gone for the potatoes instead. So it very much did come across like being strangely self righteous and weird about perfectly normal food in moderation, like so many people unfortunately are. However I can accept that you’re not joyless and you were actually just asking the question because it had come to you.
I’m sure we’ve established now that it’s perfectly possible to be at a healthy weight and a good fitness level, have good eating habits and eat a variety of foods for maximum nutrition, and still have a few potatoes with your salmon en croute. That’s what we would do, because we wouldn’t want to eat all that much pastry since it has negligible nutrition compared to potatoes. Again, if we have a chicken or beef stew pie (I only make them with leftovers) we’d just have a pie lid over the top and that would be the ‘treat’ part of the meal, and I would do chips (homemade) or mash on the side. But not huge amounts - just a small amount for me and a smallish to medium serving for DH, because we’re both conscious of keeping healthy. Most of the time I won’t have the pastry or the potatoes anyway, because I eat low carb for the most part, so I would have it with a fuckload of green vegetables instead. So it’s not like I necessarily disagree with what you were saying, either! Maybe just the way it came across...
Anyway this is as much effort as I’m going to expend on this thread. Except to say, as I should have said on the other thread, that I love boiled potatoes if they’re done right! A bit of salt and pepper, some butter or olive oil to dress, maybe some spring onion, five minutes on a low heat to let everything soak in properly. Yum!