Add 2 tablespoons of olive oil to a large skillet, on medium-low heat. Add chopped chicken (I used boneless skinless chicken, breast, add salt and cook on medium heat until chicken is cooked through and no longer pink, about 5 minutes.
Add chopped tomatoes, chopped fresh basil leaves, fresh spinach, and chopped garlic to the skillet with chicken, cook on medium heat about 3- 5 minutes until spinach wilts just a little, and tomatoes release some of their juices. Remove from heat. Taste, and add more salt to taste, if needed. Cover with lid and keep off heat.
Cook pasta according to package instructions, until al dente. Drain, and add cooked and drained pasta to the skillet with the chicken and vegetables. Reheat on low heat, mix everything well, add more seasonings (salt and pepper), if desired. Remove from heat.