Creating delicious Cheeseburger Eggrolls is simple if you follow these detailed steps:

1. Brown Ground Beef: In a large skillet over medium heat, cook the ground beef until browned. Use a spatula to break it into crumbles, cooking for about 5-7 minutes.
2. Add Onions: Stir in the diced onions and cook for an additional 3-4 minutes until they are softened.
3. Mix Filling: Remove from heat and drain any excess fat. In a bowl, combine the beef mixture with shredded cheddar cheese, diced pickles, ketchup, mustard, salt, and pepper. Mix until well-combined.
4. Prepare Eggrolls: Lay an eggroll wrapper on a clean surface with one corner pointing toward you. Place about 2 tablespoons of the filling onto the center of the wrapper.
5. Fold Eggroll: Fold the corner nearest to you over the filling, then fold in the sides, and roll tightly away from you. Use water to seal the edge of the wrapper.
6. Heat Oil: In a deep frying pan, heat oil over medium-high heat until it reaches 350°F (175°C).
7. Fry Eggrolls: Carefully place 3-4 eggrolls in the hot oil and fry until golden brown and crispy, approximately 3-4 minutes. Flip halfway through for even coloring.
8. Drain: Once cooked, use a slotted spoon to remove the eggrolls and drain them on paper towels.
9. Repeat: Repeat steps 6-8 until all eggrolls are cooked.
10. Serve: Allow them to cool slightly before serving, as the filling will be very hot.

These steps will help you create fantastic Cheeseburger Eggrolls that are sure to wow your family and friends!