Hey there Welby My mother used to use those for ice packs when we were kids, they work great because it conforms to where you need it... I am lucky, our local market gets locally grown veggies which are wonderful. Most from Half Moon Bay, which is just a hop and a skip up the road from us...
Yeah, I was thinking the same thing about how a bag of frozen peas would conform.
Yeah, I have access to locally grown produce and I'd benefit to purchase more often, both for my health and supporting local growers -- I'm just too unorganized in my approach to eating meals that fresh produce goes bad on me because I don't eat it quickly enough.
I pick my veggies whole from the garden and use them immediately - no refridgeration. Or I buy them whole but in small quantities from the local farmers' market.
I prepare everything from scratch. About 20% I have raw or par-cooked and cold as salads - with lashings of homemade dressing. I use a conventional gas stove or oven, or on fine days a solar cooker.
Pre-cut veggies would be healthier than many fast foods, but they are not optimum. The longer a veggie has been cut and exposed to oxygen, the more its vitamins have decayed.
Not sure exactly what you mean by a "health hit". You cut up various vegetables and keep them in a bag? I would think healthier to cut them up as needed because then they would remain whole longer. Also the mix would be important for health - root vegetables, coleworts, leafy greens, ground vegetables. Which would leave out whole grains and sea vegetables which are important for health as well.