On a baking tray, spice the thighs with 2 tbsp of the curry powder. Place in a 325 degree oven and bake for 15 minutes. Set aside. When cool, cut into 1" cubes.
In a skillet, add the yellow curry and the yogurt. Mix well and heat on low heat. Set aside.
Cook the pasta according to the box instructions.
Add the remaining curry powder, salt, pepper and oil to a skillet on medium heat. Cook for 2 minutes. Add the spinach and yellow curry sauce and wilt the spinach - approximately 2 minutes. Add in the pasta and cook for another 2 minutes. Mix well. Finish by adding in the chicken. Mix well.
Serve and enjoy!