Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Dice the yellow potato into 1/2-inch cubes and toss them with 0.5 tsp of olive oil, a pinch of sea salt, and black pepper.
Spread the potatoes on the baking sheet and roast for 20-25 minutes until the edges are golden and crispy.
While the potatoes roast, heat the remaining 0.5 tsp of olive oil in a medium skillet over medium-high heat.
Add the ground beef to the skillet, seasoning with garlic powder and the remaining salt and pepper.
Cook the beef, breaking it up with a spatula, until it is fully browned and cooked through, then remove from heat.
In a small mixing bowl, whisk together the Greek yogurt, yellow mustard, sweet pickle relish, and smoked paprika until smooth to create the special sauce.
Assemble the bowl by placing the shredded romaine lettuce at the base.
Top the lettuce with the cooked ground beef, roasted potatoes, diced white onion, and sliced dill pickles.
Drizzle the creamy special sauce over the entire bowl and finish with a sprinkle of toasted sesame seeds.