Make Use Of Your Zucchini Haul With This Creamy Chilled Soup

Ingredients

• 2 tablespoons olive oil
• 1 medium yellow onion, thinly sliced (about 1 1/2 cups)
• 1 medium leek, white and light green parts only, trimmed and thinly sliced (about 1 1/4 cups)
• 5 small shallots, thinly sliced (about 1 cup)
• 3 large garlic cloves, thinly sliced (about 1 tablespoon)
• 5 fresh lemon thyme sprigs
• 6 cups good-quality vegetable broth (such as Zoup!)
• 4 medium zucchini, halved lengthwise, seeded, and sliced (about 6 cups)
• 2 teaspoons kosher salt, plus more to taste
• 3 cups packed baby spinach (about 3 ounces)
• 1/2 cup lightly packed fresh flat-leaf parsley leaves
• 1/4 cup fresh basil leaves
• 4 small hakurei turnips, thinly sliced (about 2 1/2 ounces)
• 3/4 cup thinly sliced yellow and/or green summer squash
• Fresh lemon juice, to taste
• Salt
• black pepper
• Extra-virgin olive oil, for drizzling