01 -
In a large skillet over medium-high heat, cook the ground beef and chopped onion, breaking up the meat until fully browned and the onion is tender. Drain excess fat.
02 -
Stir in the shredded cheddar cheese, ketchup, yellow mustard, Worcestershire sauce, salt, and black pepper. Cook while mixing until the cheese is fully melted and incorporated. Remove from heat and allow to cool slightly.
03 -
Place approximately 2 tablespoons of filling in the center of each egg roll wrapper. Fold the bottom corner over the filling, tuck in the sides, and roll tightly toward the top. Brush the edge with beaten egg to seal.
04 -
Pour vegetable oil into a deep fryer or a large, deep skillet until oil is deep enough to cover the egg rolls. Heat oil to 350°F.
05 -
Gently place egg rolls in the hot oil in small batches, ensuring not to overcrowd. Fry each for 2 to 3 minutes per side, turning until golden brown and uniformly crisp.
06 -
Remove fried egg rolls with a slotted spoon and drain on paper towels. Serve hot with condiments such as ketchup, mustard, or a dipping sauce of choice.