1. Heat olive oil in a large pot over medium heat. Add diced chicken and let it sit for a full minute before stirring — you want some browning on those pieces for flavor. Cook until no longer pink, about 4-5 minutes.
2. Add diced onion and minced garlic. Sauté for 2-3 minutes until softened and fragrant.
3. Pour in the chicken broth and water. Bring to a gentle simmer — not a rolling boil.
4. Add carrots, celery, potatoes, dried thyme, salt, and pepper. Stir to combine and simmer for 20 minutes, or until the potatoes are completely tender when poked with a fork.
5. Stir in fresh arugula and cook for just 2 minutes until wilted. Don’t walk away — it goes fast.
6. Taste and adjust seasoning. A small squeeze of lemon juice right here is optional but genuinely great.
7. Remove from heat and serve hot.

Nutrition Information (Per Serving, based on 4 servings)

• Calories: 195
• Carbohydrates: 16g
• Protein: 22g
• Fat: 5g
• Fiber: 3g
• Sodium: 620mg
• Vitamin A: ~80% DV (from carrots)
• Vitamin C: ~25% DV (from arugula and vegetables)
• Vitamin K: ~55% DV (from arugula)

Notes

• Don’t skip browning the chicken — it builds flavor that carries through the whole broth.
• Yukon Gold potatoes hold their shape much better than russets here.
• Add arugula at the very last moment. Two minutes is all it needs.
• A squeeze of fresh lemon before serving brightens the whole bowl.
• Every stovetop runs differently — start checking your potatoes at the 15-minute mark.

Storage Tips

• Refrigerate the soup base (without arugula) in an airtight container for up to 3 days.
• Add fresh arugula only when reheating individual portions — do not store with arugula already stirred in.
• To freeze: freeze the base without arugula for up to 2 months. Thaw overnight, reheat gently, add fresh arugula before serving.
• Reheat on the stovetop over medium-low heat. The microwave works but the vegetables soften further.

Serving Suggestions

• Serve with crusty sourdough or a warm baguette for dipping into the broth.
• A simple side of roasted zucchini or a light green salad rounds out the meal nicely.
• Top individual bowls with a drizzle of good olive oil and a pinch of red pepper flakes for a little heat.
• Works beautifully as a light lunch the next day — reheat gently and add fresh arugula.

Mix It Up

Miso Chicken Arugula Soup: Stir 1 tbsp white miso paste into the broth right before adding arugula for a rich, savory depth. Tuscan-Style Chicken Arugula Soup: Add 1 cup of cooked white beans in the last 5 minutes for a heartier, Italian-inspired bowl. Low-Carb Version: Swap the potatoes for chopped zucchini or cauliflower florets, added in the last 10 minutes. Gluten-Free Version: This recipe is naturally gluten-free — just make sure your chicken broth is certified GF.

What Makes This Recipe Special

This chicken and arugula soup draws on a centuries-old Italian tradition of adding leafy greens to simple broths to build flavor and nutrition without heaviness. The peppery arugula added at the very end does something no other green quite does — it stays bright and slightly bold, making every spoonful taste fresh rather than stewed. It’s the kind of technique that turns a straightforward weeknight soup into something people actually remember.