When I did have Chef Boyardee as a kid, it was usually over someone else’s house. My Mother was not a fan, she also pronounced it in a way that seemed weird to me, but I would learn later is how they had one point pronounced it in advertising. While I would say Boy – R – D, she would say it Boy-ar-dee with a completely different emphasis. You can hear an example of it in this vintage commercial from the fifties.
Nowadays I find myself missing how she said it and I find myself doing the same.