Mince the garlic. In a small bowl or jar, whisk together the olive oil, lemon juice, tahini, minced garlic, cumin, salt, and pepper until smooth. Taste and adjust seasonings as needed.
Heat a pan over medium heat and season the chicken breast with salt and pepper on both sides. Cook the chicken for 6-7 minutes per side, or until it is fully cooked through. Set aside.
Remove the ribs from the kale and chop it into bite-sized pieces. Chop the cooked chicken breast into bite-sized pieces. Thinly slice the red onion, radish, and avocado. Roughly chop the almonds, walnuts, and fresh parsley. Sprinkle the chopped kale with salt and drizzle with 1 teaspoon of olive oil. Massage the kale with your hands until it softens and darkens in color.
In a large bowl, combine the massaged kale, chopped chicken, radishes, red onion, and parsley.
Toss in the sunflower seeds, pepitas, and chopped nuts. Drizzle half of the dressing over the salad and toss to coat evenly.
Top with sliced avocado, and drizzle with more dressing to taste. Serve immediately and enjoy this refreshing, low-carb, keto-friendly salad!