01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper and set aside.
02 - Bring a large pot of salted water to a rolling boil. Add the baby potatoes and cook for 12–15 minutes until fork-tender. Drain well and let cool slightly.
03 - Arrange the boiled potatoes on the prepared baking sheet. Using a flat spatula or the bottom of a glass, gently press each potato to flatten it into a smashed disk.
04 - Drizzle the smashed potatoes with olive oil and season with garlic powder, smoked paprika, salt, and black pepper. Roast for 18–22 minutes, flipping halfway through, until golden brown and crispy on the edges.
05 - While the potatoes roast, season the ground beef with salt, black pepper, and Worcestershire sauce in a mixing bowl. Gently form into 4 equal, loosely packed balls without overworking the meat.
06 - Heat a large skillet or griddle over medium-high heat. Working in batches if needed, place the beef balls onto the hot surface and smash firmly with a spatula to flatten into thin patties. Cook for 2–3 minutes per side until deeply browned and cooked through. Remove and set aside.
07 - In a small bowl, whisk together the mayonnaise, ketchup, yellow mustard, pickled relish, apple cider vinegar, garlic powder, onion powder, and paprika until smooth. Adjust salt and pepper to taste.
08 - Divide the crispy smashed potatoes among 4 serving bowls. Layer each with shredded lettuce, diced tomato, sliced red onion, dill pickles, and shredded cheddar cheese. Crumble or lay the cooked burger patties over the top and drizzle generously with special sauce.
09 - Serve immediately while hot and enjoy.