Complex sentence: In the 1940's and 50's in Québec we could buy "de la macédoine" in cans packaged by a major company, maybe Campbell's and it was usually a diced mixture of carrots and peas.
Split into simpler sentences: In the 1940's and 50's in Québec one could buy "de la macédoine" in cans packaged by a major company. It was usually a diced mixture of carrots and peas.