Brothy Bean Soup With Parmesan

Name: Brothy Bean Soup With Parmesan
Ingredients: 3 tablespoons extra-virgin olive oil; 1 medium white onion, finely diced; 3 garlic cloves, minced; 1/2 teaspoon dried thyme; 1/2 teaspoon dried oregano; 2 medium carrots, peeled and finely diced; 2 celery sticks, finely diced; 1 vegetable bouillon cube; 1 (28-ounce) can cannellini beans, drained and rinsed; 1 (32-ounce) box vegetable stock; 2 cups packed baby spinach; 1/2 teaspoon freshly ground black pepper; Kosher salt, to taste; Parmesan cheese, for garnish; Toasted sourdough bread, to serve