Hearty Italian Beef, Bean, and Vegetable Stew

Bahan-bahan (24 porsi)

• 2 lbs ground beef
• 1 very large yellow onion (2 cups diced small)
• 2 lbs carrots (8 cups peeled and sliced thin)
• 1 bunch celery (4-5 cups sliced thin)
• 3 29 ounce cans petite diced tomatoes
• 1 29 ounce can crushed tomatoes
• 1 29 ounce can tomato sauce
• 3 cups cooked or (2 14 ounce cans light red kidney beans)
• 3 cups cooked or (2 14 ounce cans great northern or cannellini beans)
• 4 cups hot water mixed with 2 tablespoons beef base (I use Better Than Bouillon)
• 2 teaspoons dried oregano
• 2 teaspoons dried basil
• 2 teaspoon freshly ground black pepper
• 2 teaspoons freshly cracked kosher salt
• 29 ounce bag frozen green beans
• 29 ounce bag frozen corn
• Optional: finely grated Pecorino Romano or Parmesan cheese