01 -
In a large skillet over medium-high heat, brown the ground beef and chopped onion, breaking up the meat as it cooks. Drain excess fat.
02 -
Stir in cheddar cheese, ketchup, mustard, Worcestershire sauce, salt, and pepper. Cook until the cheese melts and the mixture is well combined. Let cool slightly.
03 -
Place about 2 tablespoons of filling in the center of each wrapper. Fold the bottom corner over, tuck in the sides, and roll tightly. Seal the edge with beaten egg.
04 -
Heat vegetable oil in a deep fryer or large skillet to 350°F (175°C), ensuring there is enough oil to fully submerge the egg rolls.
05 -
Fry a few egg rolls at a time for 2 to 3 minutes per side until golden brown and crispy. Avoid overcrowding the pot for even cooking.
06 -
Remove egg rolls with a slotted spoon and drain on paper towels. Serve hot with your choice of dipping sauces.