Season the chicken breast with half of the sea salt and black pepper.
Heat olive oil in a grill pan over medium-high heat and cook the chicken for 6-7 minutes per side until the internal temperature reaches 165 degrees Fahrenheit.
In a small mixing bowl, whisk together the Greek yogurt, Dijon mustard, lemon juice, coconut aminos, garlic powder, and the remaining salt and pepper to create the dressing.
Drain and rinse the chickpeas, then lightly toast them in a dry skillet over medium heat for 3-4 minutes until they are slightly crisp.
Wash and chop the romaine lettuce into bite-sized pieces and place them into a large salad bowl.
Allow the grilled chicken to rest for 3 minutes before slicing it into thin strips.
Toss the romaine lettuce with the prepared Greek yogurt dressing until every leaf is evenly coated.
Top the salad with the sliced grilled chicken, toasted chickpeas, grated Parmesan cheese, and hemp hearts for added texture.