Carrabba's Minestrone Soup

Ingredients

• 4 Tablespoons salted butter
• 2 Tablespoons olive oil
• 8 celery stalks, chopped
• 2 white onions, chopped
• 10 carrots, chopped
• 4 garlic cloves, minced
• 4 ounces prosciutto, chopped
• 1 cup green beans
• 2 pounds green cabbage, chopped
• 2 zucchinis, chopped
• 6 32-ounce boxes chicken stock
• 2 Tablespoons dried parsley
• 2 Tablespoons dried basil
• 4 plum tomatoes, diced
• 2 bay leaves
• salt
• pepper
• 4 Russet potatoes, diced
• 2 15-ounce cans garbanzo beans, drained and rinsed
• 2 15-ounce cans cannellini beans, drained and rinsed
• 2 15-ounce cans kidney beans, drained and rinsed
• 2 Pecorino Romano rinds
• 4 ounces Pecorino Romano cheese, grated