Seven Vegetable Minestrone Soup

Name: Seven Vegetable Minestrone Soup
Ingredients: 2 teaspoons olive oil; 1 medium yellow onion; 2 teaspoons fresh oregano, chopped; 2 teaspoons minced garlic; 2 medium yellow squash, chopped; 2 medium zucchini, chopped; 2 medium carrots, chopped; 1 - 15.25 oz. can whole kernel sweet white corn, drained; 6 (4 cups) Roma tomatoes, chopped & divided (3 cups & 1 cup); 3 - 14 oz. cans low sodium chicken broth, divided; 1/2 cup uncooked ditalini pasta; 1 - 15.5 oz. can Great Northern beans, rinsed & drained; 1 - 6 oz. bag of fresh baby spinach; 3/4 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper; 4 oz. (1 cup) grated Asiago cheese