Boil the Potatoes: Add the baby potatoes to a large pot of salted water and boil until fork-tender, about 15 to 20 minutes. Drain them well and let them cool for a few minutes so they are easier to handle.
1 1/2 pounds baby potatoes
Smash the Potatoes: Place the potatoes on a parchment-lined sheet pan. Use the bottom of a drinking glass or a potato masher to gently smash each one until flattened but still mostly holding together.
Roast Until Crispy: Drizzle the smashed potatoes with olive oil and season with the salt and black pepper. Roast at 425°F for 20 to 25 minutes, or until the potatoes are golden brown and crispy around the edges.
1 1/2 tablespoons olive oil, 1/2 teaspoon salt, 1/4 teaspoon black pepper
Make the Sauce: In a small bowl, stir together the mayonnaise, ketchup, yellow mustard, pickle relish, white vinegar, and paprika until smooth and creamy.
2/3 cup mayonnaise, 2 tablespoons ketchup, 1 tablespoon yellow mustard, 1 tablespoon pickle relish, 1 teaspoon white vinegar, 1/4 teaspoon paprika
Cook the Beef: Heat a large skillet over medium heat. Add the ground beef and cook, breaking it up with a spatula, until browned and fully cooked, about 6 to 8 minutes. Season with the garlic powder, onion powder, kosher salt, and black pepper.
8 ounces ground beef, 1/2 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/2 teaspoon kosher salt, 1/4 teaspoon black pepper
Assemble the Base: Arrange the crispy smashed potatoes on a serving platter or in a shallow bowl. Spoon the hot ground beef evenly over the potatoes
Add the Toppings: Sprinkle the shredded cheddar cheese over the hot beef so it softens slightly. Scatter the chopped dill pickles and shredded iceberg lettuce over the top.
1/2 cup shredded cheddar cheese, 1/2 cup chopped dill pickles, 1 cup shredded iceberg lettuce
Finish with Sauce: Drizzle the burger sauce over everything and serve right away while the potatoes are still crisp.