Begin by heating a large skillet over medium heat, then add in 4 lb of ground beef. Cook until fully browned, and drain any excess fat. Next, introduce a splash of sherry to the beef, followed by 1 cup of mozzarella cheese, 2 beaten eggs, 2 teaspoons of ground ginger, and 2 packages of seasoning mix. Give everything a good stir until well combined and set aside.
Assemble the egg rolls by laying an egg roll wrapper on a flat surface with one corner pointing towards you. Place 1 tablespoon of the beef filling in the center, and top it off with a few slices of tangy pepperoncini peppers and shredded spinach leaves for added color and nutrients.
To wrap the egg rolls, fold the bottom corner up over the filling, then tuck in the sides. Brush a bit of water on the top corner and roll it tightly towards the top, sealing the egg roll.
In a deep pot or wok, heat enough vegetable oil to reach about 2 inches deep over medium-high heat. Once heated to 375°F, add the egg rolls in batches and fry for approximately 2-3 minutes, until they are crispy and golden brown. Remove with a slotted spoon and let them drain on paper towels before serving hot.