Thoroughly combine the Cheddar, bacon, salt, pepper and onions in a medium mixing bowl using your hands. Add in the beef and combine well.
Roll out your wonton wrappers. Place a dollop of the filling into the center of each wonton using a tablespoon measure. Fold over the ends to make an enclosed envelope, and then secure by either scalloping or pressing the prongs of a fork into the edge.
Heat some vegetable oil in a saute pan.
Place the dumplings in a single layer in a large frying pan (you may need to work in batches). Add a few tablespoons water and heat slowly, covered, until the water has evaporated, about 5 minutes. Uncover and add 1 tablespoon of the hot oil to fry the bottoms of the dumplings.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.