Morg,
the breaded fried style can be had in frozen food dept. in grocery stores near the frozen burritos etc.
They are eh !
kinda what Jeno's pizza rolls are to good brick oven pizza.
Your Dad's, wanton stuffed with jalapeno, cream cheese, scallions and some cheddar, (I assume fried) sounds good.
I have a friend, who is half Korean, that uses a Fry Baby and makes wonton with ground beef, pepper & onions very tasty.
I on the other hand, use the flaky Pop'n Fresh Busquets dough (each cut in 1/4 ) then wrapped & filled all manner of ingrediencies with my basket fryer.
I've use Little Smokies or pearl Onions, or cream cheese.
Peanut Buter, Chedder, ground beef etc. when the Busquets dough is golden, they are cooked through.
I have yet to try frying stuffed jalapenos, that seems to be something on the to do list