Full-of-Veggies Soup

Ingredients

• 2 tablespoons olive oil
• 2 carrots, chopped
• 2 stalks celery, chopped
• 1 medium yellow onion, chopped
• 1 sweet potato, peeled and diced
• 1 teaspoon kosher salt, divided
• 4 cloves garlic, chopped
• 6 cups vegetable broth
• 1 (14.5-ounce) can crushed tomatoes
• 1 (8.75-ounce) can corn, drained
• 1 1/2 cups frozen green beans
• 1 medium zucchini, chopped
• 1 (15-ounce) can cannellini beans, drained and rinsed
• 2 teaspoons Italian seasoning
• 1 (5-ounce) bag baby spinach
• 1/2 teaspoon black pepper