Heat oil in a large cooking pot or a frying pot.
While the oil is heating up, melt butter in a frying pan or on a griddle.
Add to the melted butter the diced green onion and diced bologna.
Cook until it reaches the doneness you prefer.
Remove from heat and let cool slightly.
Remove your cheese and package of wontons from the fridge and set everything out like an assembly line.
Place a thick slice of cheese in the middle of the wonton wrapper and spoon some of the bologna / onion mixture over it.
Dip your finger in water and run along all four sides of the wonton wrapper.
Bring two opposite sides together, like a triangle and push the wrapper slightly around the mound of meat and cheese to remove excess air before sealing the edges.
Once you have your triangle sealed, take the two ends and after dipping your finger and wetting the wrapper, pull back towards each other and seal again.
When you have made all of the wontons, move them over to your fry station.
Once your oil has reached 400 degrees, drop a couple of the wontons into the hot oil and rotate them until all sides are golden brown. This takes about 20 seconds.
Remove to a paper towel lined plate and sprinkle with a pinch of salt while they are piping hot. Serve immediately.