Heat a non-stick skillet over medium-high heat.
Add the ground beef to the skillet, breaking it into small crumbles with a spatula.
Season the beef with sea salt and black pepper, cooking until browned and crispy, about 7-8 minutes.
While the beef cooks, whisk together the Greek yogurt, yellow mustard, pickle juice, smoked paprika, garlic powder, and onion powder in a small bowl until smooth.
Place the shredded romaine lettuce into a large serving bowl.
Top the lettuce with the cooked crispy beef, diced red onion, sliced pickles, and shredded cheddar cheese.
Drizzle the yogurt special sauce over the bowl and toss well before serving.