Preheat oven to 450F. Cut the cauliflower into florets. Cube the potatoes into medium sized cubes. Bake for 40 minutes, flipping once then broil on high until golden brown
Cube the chicken and sauté with some olive oil and add salt, garlic powder and black pepper for about 6-7 minutes or until cooked.
In a medium sized Pyrex, add the baked cauliflower, potatoes and cooked chicken. Drizzle the tahini sauce all over. Garnish with toasted nuts and minced parsley.