Cook pasta until al dente, drain and set aside.
In a large pot, melt butter on medium heat. Add diced onions and garlic. Cook until they begin to soften.
Add sliced mushroom to the pot and saute until juices start to release.
Pour in 3 cups of water and stir in chicken oxo.
Add in diced potato and carrot. Bring to a boil then simmer until vegetables are tender.
Mix cream and cornstarch together then stir gradually into soup. Bring the soup back to a boil.
Return chicken to the pot and stir in frozen diced squash and pasta. Simmer until heated through.
Serve garnished with parsley.
