In a large mixing bowl, combine the ground beef, caramelized onions (or relish), finely chopped pickles, cheddar cheese, Dijon mustard, fish sauce, salt, and a generous amount of freshly ground black pepper. Mix thoroughly until the ingredients are evenly incorporated. There is no need to precook the beef, as it will cook during the baking or frying process.

In a separate medium bowl, combine the Greek yogurt, Dijon mustard, tomato ketchup, crushed garlic, finely chopped pickles, pickle juice, and smoked paprika. Stir until well blended. Adjust the seasoning to taste and set aside until ready to serve.

Place a single spring roll wrapper on a clean, flat surface in a diamond orientation, with one corner pointing towards you. If making mini spring rolls, cut the wrappers into smaller squares.

Spoon approximately one heaping tablespoon of the cheeseburger filling into a log shape, positioned about one inch from the bottom corner of the wrapper. Fold the corner over the filling and roll tightly towards the center of the wrapper. Fold in both side corners to seal the ends, then continue rolling until a tight cylinder is formed. Use a small amount of water to moisten the final corner, pressing gently to seal the edge. For mini spring rolls, it is recommended to double wrap them to prevent any leakage during cooking.

You may choose from three cooking methods, depending on preference and equipment:

Preheat the air fryer to 400°F (200°C). Arrange the spring rolls in a single layer in the unlined basket to prevent sogginess. Lightly spray with olive oil. Cook for 20 minutes, turning halfway through the cooking time to ensure even crisping.

Heat approximately 1 tablespoon of olive oil in a large non-stick skillet over medium-high heat. Arrange the spring rolls in the pan, cooking for approximately 10 minutes. Turn them frequently to achieve an even golden-brown crust on all sides.

Preheat the oven to 400°F (200°C). Line a baking tray with parchment paper or place a wire rack over the tray for better airflow. Arrange the spring rolls on the tray, leaving space between each one. Brush lightly with olive oil. Bake for 25 minutes, turning them over halfway through to promote even browning. Note: The oven method may yield slightly less crisp results unless a wire rack is used.

Transfer the spring rolls to a serving platter. Serve immediately alongside the prepared burger dipping sauce. For presentation, larger rolls may be sliced in half diagonally before serving.