Season the chicken breast with half of the sea salt and black pepper.
Heat a high-quality non-stick skillet over medium-high heat. Add the chicken and sear for 6-7 minutes per side until fully cooked and golden, using a splash of water if sticking occurs.
While the chicken cooks, prepare the sauce by whisking the tahini, lemon juice, dijon mustard, garlic powder, onion powder, and the remaining salt and pepper in a small bowl.
Slowly add the water to the tahini mixture, whisking constantly until the sauce reaches a smooth, creamy consistency.
Chop the romaine lettuce, slice the tomato, finely dice the red onion, and slice the dill pickles.
Slice the cooked chicken into thin strips.
Assemble the bowl by layering the romaine lettuce at the base, followed by the tomato, onion, pickles, and sliced chicken.
Drizzle the creamy tahini burger sauce generously over the top and serve immediately.