Peel and cube the Russet potato into half-inch pieces.
Toss the potato cubes with olive oil, half of the sea salt, and half of the black pepper in a bowl.
Place potatoes in an air fryer at 400°F for 15-20 minutes, shaking halfway through, until they are golden and crispy.
While potatoes cook, place a skillet over medium-high heat and add the ground beef.
Cook the beef until browned, breaking it into small crumbles, then drain any excess liquid.
Season the beef with the remaining sea salt and black pepper.
In a small bowl, whisk together the Greek yogurt, yellow mustard, pickle juice, smoked paprika, garlic powder, and onion powder to create the special sauce.
Stir the finely chopped dill pickles into the sauce mixture.
Shred the Romaine lettuce and finely dice the red onion.
Assemble the bowl by layering the shredded lettuce, crispy potatoes, and seasoned ground beef.
Drizzle the special sauce over the top and garnish with diced red onion and sesame seeds.