Creating Delicious Cheeseburger Eggrolls is as simple as following these easy steps:

1. Cook the Beef: In a skillet over medium heat, crumble the ground beef and cook until browned. Drain any excess fat.
2. Add Onions: Stir in the chopped onions and cook until they are translucent and tender.
3. Mix Ingredients: Combine the cooked beef and onions in a bowl. Add the shredded cheddar cheese, chopped pickles, ketchup, mustard, salt, and pepper. Mix until evenly blended.
4. Prepare Eggrolls: Lay out an eggroll wrapper on a clean surface. Place a spoonful of filling in the center of the wrapper.
5. Fold the Wrapper: Fold the bottom corner of the wrapper over the filling and roll it tightly toward the opposite corner. Tuck in the sides as you go to seal the filling inside.
6. Seal the Edges: Use a bit of water to moisten the edges, sealing the eggroll completely. Repeat with the remaining wrappers and filling.
7. Heat Oil: In a large skillet or deep fryer, heat the oil to 350°F (175°C) for frying. If baking, preheat the oven to 400°F (200°C).
8. Fry the Eggrolls: Carefully add a few eggrolls to the hot oil, frying until golden brown and crispy, about 3-4 minutes. Drain on paper towels.
9. Bake (Optional): If baking, place the eggrolls on a baking sheet lined with parchment paper and spray them lightly with cooking spray. Bake for 12-15 minutes, flipping halfway through.
10. Serve and Enjoy: Let the eggrolls cool slightly before serving to avoid burns. 

Following these steps will guide you toward creating a delightful batch of Delicious Cheeseburger Eggrolls effortlessly!