Super Easy Cauliflower Vegetable Soup

extra virgin olive oil

medium yellow onion, (halved and peeled)

garlic, (peeled)

carton vegetable broth

diced tomatoes

bag frozen petite mixed vegetables ((I used C&W))

bag frozen cauliflower

Italian seasoning

Salt and freshly ground black pepper

low-sodium chick peas, (drained)

minced fresh parsley and grated parmesan for serving ((optional))