Heat the avocado oil in a large skillet over medium-high heat.
Add the ground beef to the skillet, breaking it into small crumbles with a spatula.
Season the meat evenly with the sea salt, black pepper, garlic powder, and onion powder.
Sauté the beef until it is fully browned and cooked through, approximately 7 to 8 minutes.
While the beef cooks, chop the romaine lettuce into bite-sized pieces and halve the cherry tomatoes.
Thinly slice the red onion and the dill pickles.
Place the chopped romaine in a large bowl and top it with the warm seasoned beef.
Arrange the tomatoes, red onion, pickles, and sliced avocado over the beef.
Drizzle the entire bowl with yellow mustard and serve immediately.