Hearty White Bean and Spinach Soup with Rosemary and Garlic Recipe

Name: Hearty White Bean and Spinach Soup with Rosemary and Garlic Recipe
Ingredients: 1/4 cup extra-virgin olive oil, divided; 1 medium onion, finely sliced (about 1 cup); 1 stalk celery, diced (about 1/2 cup); 6 medium cloves garlic, thinly sliced; 1 tablespoon chopped fresh rosemary leaves; 1 quart vegetable stock; 1 bay leaf; 1 (15 ounce) can white beans, drained and rinsed; 1 bunch spinach (about 4 ounces), trimmed and washed; 2 teaspoons juice from 1 lemon; Kosher salt and freshly ground black pepper