A lot of suggestions sound too heavy to carry.
They are often walking over 60km over 3 days for silver. Their pack is likely to weigh between 12 and 15kg before they put food in….that is with the bare minimum of clothes, but the essential tent, stove, sleeping bag and mat and 2litres of water. When I tired, I could barely lift the pack, never mind walk over 20km some days with it.
They do have to prepare a hot meal. They have to carry their food for 3 lunches, 2 breakfasts and 2 cooked meals.
Food with v limited packaging is needed. It needs to be light and quick. Gas for cooking will be limited due to carrying it, so things that cook in 5-10 mins max, including the water boiling time.
And by the time you’re at silver level, this is getting quite hardcore and it won’t probably be working for those with very fussy needs…whatever the root cause of them are. Those who can’t/won’t share a tent or carry their pack or eat the food or walk the distance won’t get through it. It’s not mean to be easy, but to be a real challenge that stretches them a lot.
Many on these hikes will cry at some point, they will be exhausted, their feet will ache and they will still have some distance to go with the heavy pack. My DS who was fairly robust (rugby player etc) said in his group’s training expedition, all 6 in his group of boys and girls had a little cry at some point. They had terrible weather and found it very hard. Several had blisters and they just hadn’t faced the distance with a big load before, even at Bronze level.
Between the practice hike and the real thing a few dropped out. Apparently that’s entirely usual. And more drop out before Gold. Getting Gold is meant to be a real achievement and not something the majority will manage. Some activities have to be undertaken for the full year and then there’s the 5 day trip - practice and qualifying which includes wild camping with no loos and a trowel! It’s not for all, but those who manage have a tremendous sense of achievement. I think it’s FAB and it absolutely shouldn’t be watered down or managed by parents or schools or Scout groups to remove the independence that it’s designed for.