Copycat Panera Lemon Chicken Orzo Soup

Ingredients

• 1 tsp olive oil
• 2 cups carrots, chopped (approx. 3 carrots)
• 1 + 1/2 cup celery, diced (approx. 4 ribs)
• 2 cups white onion, diced (approx. 1 medium)
• 3 cloves garlic, crushed
• 1/2 tsp fresh thyme
• 1/2 tsp dried oregano
• 1/8 tsp Kosher salt
• 1/8 tsp black pepper
• 1 dry bay leaf
• 6 cups low sodium chicken broth
• 1lb boneless skinless chicken thighs
• 1/4 cup orzo pasta
• 1/2 cup fresh lemon juice
• 3 fresh cups baby spinach
• zest of one lemon
• Optional toppings: lemon slices, grated parmesan