Why This Recipe Works

Set-and-forget convenience: Dump, stir, walk away—dinner cooks itself while you live your life.
Protein powerhouse: Greek yogurt and boneless skinless chicken thighs deliver almost 40 g protein per serving.
Creamy without cream: A cornstarch-and-yogurt slurry thickens the broth for a luxurious mouthfeel under 450 calories.
One pot, zero babysitting: No pre-searing or stovetop juggling; the slow cooker does every ounce of work.
Freezer-friendly: Make a double batch and freeze half for a rainy-day rescue meal.
Veggie-smuggling approved: Baby spinach wilts invisibly into the broth, so even picky eaters get their greens.

Ingredients You'll Need

Every ingredient pulls double duty here—flavor and function. Below I’ve listed what I buy, why I buy it, and the easiest swaps if your pantry (or budget) demands flexibility.

Chicken thighs, boneless & skinless (1½ lb / 680 g): Dark meat stays succulent after hours of slow cooking. Trim excess fat but leave a little for flavor. Chicken breast works; just reduce cooking time by 30 min so it doesn’t dry out.
Potato gnocchi, shelf-stable (16 oz / 450 g): Look for a short ingredient list—basically potatoes, flour, salt. Refrigerated gnocchi cook faster; add them only in the last 20 min. Gluten-free gnocchi (usually rice-based) swap 1-for-1.
Low-sodium chicken broth (4 cups / 950 ml): I keep cartons of organic broth on subscription because I blow through them. Swap with homemade stock if you’re lucky enough to have it.
Plain Greek yogurt, 2 % (1 cup / 240 g): The secret protein booster. Full-fat tastes richest, but 0 % works if that’s what’s in your fridge. Make sure it’s at room temp before stirring in to prevent curdling.
Baby spinach (5 oz / 140 g): Pre-washed bags save sanity. Frozen spinach (thawed and squeezed dry) is an economical substitute; use ½ the volume.
Carrots (2 medium, diced): Sweet earthiness and color. Peel if the skins look sad; otherwise just scrub.
Celery (2 stalks, diced): Adds aromatic backbone. Include the leaves—zero waste, maximum flavor.
Yellow onion (1 large, diced): The foundation of every great soup. Dice small so it melts into the broth.
Garlic (4 cloves, minced): Fresh garlic beats powder every time. In a pinch, ½ tsp garlic powder per clove.
Olive oil (1 Tbsp): Just enough to sauté the aromatics. Butter works for a slightly richer flavor.
Italian seasoning (1 tsp): A balanced blend of oregano, basil, thyme, rosemary. Make your own: ¼ tsp each dried oregano, basil, thyme, plus a pinch of rosemary.
Nutmeg (⅛ tsp): The “huh, what’s that?” note that makes creamy soups taste gourmet. Freshly grated is heavenly; pre-ground is fine.
Cornstarch (2 Tbsp): Mixed with yogurt to thicken without heavy cream. Arrowroot or tapioca starch 1-for-1.
Salt & pepper: I season at three stages—sauté, slow cook, and finish—to build layers rather than a last-minute salt lick.

How to Make High Protein Slow Cooker Chicken Gnocchi Soup with Spinach

Sauté the aromatics

Set a medium skillet over medium heat. Add olive oil, onion, carrot, and celery with a pinch of salt. Cook 5 min until the vegetables begin to soften and the onion turns translucent. Stir in garlic and Italian seasoning; cook 30 sec until fragrant. (This quick step caramelizes the natural sugars and deepens flavor, but if you’re in a rush you can dump everything raw into the slow cooker—just expect a slightly lighter broth.)

Load the slow cooker

Transfer the sautéed mixture to a 6-quart slow cooker. Nestle chicken thighs on top, sprinkle with ½ tsp salt, ¼ tsp pepper, and the nutmeg, then pour in the broth. Give everything a gentle stir, cover, and cook on LOW 5–6 h or HIGH 2½–3 h, until the chicken shreds easily with two forks.

Shred the chicken

Remove thighs to a plate and shred into bite-size pieces. Discard any lingering fatty bits. Return meat to the pot; taste the broth and add more salt if needed (it will depend on your broth brand).

Thicken the base

In a small bowl whisk cornstarch into ¼ cup cold water until lump-free. Whisk in Greek yogurt until smooth. Ladle 1 cup hot broth from the slow cooker into the yogurt mixture and whisk (this tempers it). Pour everything back into the soup, stirring to combine. Cover and cook on HIGH 10 min until the broth thickens slightly.

Add gnocchi & spinach

Stir in gnocchi and spinach. Cover again and cook on HIGH 20 min (or LOW 40 min) until gnocchi float and spinach wilts. The soup will look creamy and luxurious.

Season to finish

Taste once more, adjusting salt and pepper. I usually add another ¼ tsp salt and a few cracks of fresh black pepper. Ladle into warm bowls and serve with crusty whole-grain bread or a bright arugula salad.

Expert Tips

Temperature matters

Cold yogurt will curdle in hot soup. Let it sit on the counter while the chicken cooks, or microwave 15 sec to knock off the chill.

Gnocchi timing

Shelf-stable gnocchi need 20 min on HIGH; fresh gnocchi only 10. Add too early and they’ll dissolve into mush.

Freeze before gnocchi

Planning to freeze? Stop after Step 3, cool, and freeze. When reheating, add gnocchi and spinach straight from frozen; they’ll cook in 25 min.

Thin or thicken

Too thick? Splash in milk or broth. Too thin? Whisk another 1 tsp cornstarch with 2 Tbsp water and simmer 5 min.

Rotisserie shortcut

Skip raw chicken and stir in 3 cups shredded rotisserie during Step 4; cook just until hot—perfect for last-minute prep.

Brighten at the end

A squeeze of fresh lemon or a handful of chopped parsley wakes up the creamy flavors just before serving.

Variations to Try

Dairy-free: Replace yogurt with coconut milk and use 1 Tbsp cornstarch. Flavor will be slightly sweeter; add a pinch more salt.
Tuscan twist: Swap Italian seasoning for 1 tsp each dried basil and oregano, and stir in a ½ cup sun-dried tomato strips with the spinach.
Mushroom lovers: Add 8 oz sliced cremini mushrooms to the skillet in Step 1; cook until they release their liquid and brown.
Spicy kick: Stir ¼ tsp red-pepper flakes into the aromatics and finish with a drizzle of chili oil.
Low-carb: Sub cauliflower gnocchi and use 2 tsp xanthan gum instead of cornstarch. Carbs drop to ~22 g per serving.
Leafy swap: Kale or Swiss chard hold up beautifully; just remove the tough ribs and chop. Add 10 min earlier than spinach.

Storage Tips

Refrigerate: Cool completely, transfer to airtight containers, and refrigerate up to 4 days. The gnocchi will continue to absorb broth, so thin with a splash of milk or broth when reheating.

Freeze: Portion soup (minus gnocchi and spinach) into freezer bags, lay flat to freeze up to 3 months. Thaw overnight in the fridge, then proceed with Step 5.

Reheat: Warm gently on the stove over medium-low, stirring often. Microwave works in 1-min bursts, stirring between. Avoid boiling after yogurt is added or it can curdle.

Make-ahead for parties: Complete Steps 1–4 the day before; refrigerate the shredded-chicken base. Next day, reheat on the stove, add gnocchi/spinach, and serve in 25 min.

Frequently Asked Questions

Yes—add 1 h to LOW cooking time. Make sure the thickest piece reaches 165 °F / 74 °C before shredding.

Temperature shock. Always temper yogurt with hot broth before adding to the crock. If it still breaks, whisk vigorously or buzz with an immersion blender to re-emulsify.

Absolutely—use HIGH for 3 h for thighs, 2 h for breast. Add gnocchi and spinach in the last 20 min.

As written, standard gnocchi contain wheat. Use a certified GF gnocchi (potato-rice blend) and confirm your broth and yogurt are GF.

Yes, provided your slow cooker is 8 qt or larger. Keep cook times the same; you may need an extra 10 min during the final thicken step.

Use 2 Tbsp all-purpose flour whisked into the yogurt, or 1 Tbsp arrowroot, or mash ½ cup of the cooked potatoes from the gnocchi into the broth.

High Protein Slow Cooker Chicken Gnocchi Soup with Spinach

Why This Recipe Works

Ingredients You'll Need