Minestrone Vegetable Soup

Name: Minestrone Vegetable Soup
Ingredients: * 2 tb light olive oil; * 1 tb salted butter; * 1 c (1 small) diced onion; * 1/2 c thinly sliced celery, with leaf included; * 1/2 c thinly sliced carrot; * 3 clove minced garlic; * 2 tsp italian seasoning blend; * 1 1/2 tsp kosher salt; * 1/2 tsp black pepper; * 4 c (1 quart) low sodium chicken stock; * 4 c water; * 1 parmesan cheese rind, optional but encouraged; * 1 (16 oz ) can garbanzo bean, rinsed and drained; * 1 (16 oz ) can black bean, rinsed and drained; * 1 (16 oz ) can kidney bean, rinsed and drained; * 1 c fresh green bean; * 1 (15 oz ) can petite diced tomato; * 2 c (packed) baby spinach, rinsed, dried, and roughly chopped; * 1 c (3 oz ) orechette (disk) shaped pasta; * 1/2 c shaved parmesan, divided