01 - Preheat 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. Drizzle with olive oil and season with garlic powder, smoked paprika, salt, and pepper.
04 - Roast the smashed potatoes for 18–22 minutes until golden brown and crispy, flipping halfway through for even browning.
05 - While the potatoes roast, season ground beef with salt, pepper, and Worcestershire sauce. Mix gently and form into 4 equal, loosely packed balls.
06 - Heat a large skillet or griddle over medium-high heat. Working in batches, place beef balls onto the hot surface and smash firmly with a spatula to flatten. Cook 2–3 minutes per side until deeply browned and cooked through. Set aside.
07 - In a small bowl, whisk together mayonnaise, ketchup, yellow mustard, pickled relish, apple cider vinegar, garlic powder, onion powder, paprika, salt, and pepper until smooth and well combined. Adjust seasoning to taste.
08 - Divide the crispy potatoes among 4 bowls. Top each with shredded lettuce, diced tomato, red onion slices, pickles, and shredded cheddar cheese. Crumble or slice the cooked burger patties over each bowl and drizzle generously with special sauce.
09 - Serve immediately while hot and enjoy.