In a medium bowl, season the ground beef with sea salt, black pepper, garlic powder, and onion powder, mixing gently with your hands to incorporate.
Heat the olive oil in a large skillet over medium-high heat until it begins to shimmer.
Add the seasoned beef to the skillet, breaking it into small crumbles with a spatula, and cook until browned and fully cooked through, about 6 to 8 minutes.
While the beef is cooking, roughly chop the romaine lettuce and slice the cherry tomatoes, red onion, and pickles.
Assemble the bowls by layering the crisp romaine at the base, followed by the warm cooked beef crumbles.
Top the bowl with the sliced tomatoes, red onion, pickles, and freshly sliced avocado before serving immediately.