In a large pan pour the olive oil and heat over medium heat. Add the chicken breasts and sprinkle with salt, pepper and dried basil. Allow to cook about 5 minutes then turn to cook the other side. Sprinkle the other side with the remaining salt, pepper and dried basil. Cook until chicken is browned and no longer pink. Remove from pan and set aside.
Add the minced garlic to the pan and cook for about 30 seconds. Pour in the chicken broth. Measure out the evaporated milk and whisk in the cornstarch. Pour into the pan with the chicken broth and stir together.
Add in the macaroni noodles. Bring to a simmer and let the noodles cook stirring occasionally for about 10 minutes until noodles are tender.
Add in the cheeses and stir to mix. Add in the diced tomatoes and fresh basil. Stir.
Slice the chicken and add back to the pan. Serve warm and enjoy.