When I was growing up, RARELY had canned veggies. Mostly fresh... fridges back then had minute "freezers"... small box mainly for a few ice cube trays and that was about it.
Whenn that fridge was replaced, had a fridge/freezer... pretty small compared even to basic ones today. We still had mostly fresh veggies, but those convenient little rectangular boxes worked fine.
Was watching "Cut Throat Kitchen".. I KNOW it's a "reality" show and not really a cooking one. They had to make an "authentic" stir fry??? Then at some point winning bidder was able to take all fresh veggies and give contestant (can't bring self to say chef) a bag of frozen mixed veggies.
Might have been the judge who said if stir fried or sauted FAST and HOT, you'll get a crust before they turn to mush?? Anybody cook frozen veggies like this?