Hi Jerry
Getting back to your OP, were you sure they were "fried" onions, I've never seen big bags
of fried onions, but plenty of big bags of dehydrated catering onions -- (and Mushrooms)
The type of onions you'd get from a hot dog van/cart back in the day.
On dry fried onions, I came across tubs of Top Taste Crispy Onions in ASDA a couple of years ago
and are fantastic as a crispy garnish on Rice, Dhal and Curry.
It's a Dutch company, Factory made, so no chance recreating the same at home.
I think they were less than a quid a tub, so it would cost you more in time, effort and energy anyway.
http://www.top-taste.nl/Well worth a punt, simple product packed with flavour.
cheers Chewy