High-Protein Slow-Cooker Chicken & Sweet Potato Soup for Cold Nights

When the first real chill of winter slips under the door, nothing comforts me faster than the promise of dinner that cooks itself while I binge-watch British crime dramas under four blankets. This velvet-thick, coral-hued chicken and sweet-potato soup has become my December love language: it greets me at the end of a long day with the smell of rosemary and garlic, delivers 42 grams of protein per bowl, and somehow tastes even better when eaten in pajamas while the wind howls outside. My neighbors have started dropping by “just to check on the dog,” but I know they’re really angling for a ladleful. I can’t blame them—once you taste the way sweet potatoes melt into the broth and the shredded chicken soaks up every last smoky note of paprika, you’ll be volunteering to walk my dog too.

Ingredients You'll Need

Quality ingredients make this humble soup sing. Here’s what to look for—and what you can swap in a pinch.

Chicken breast: I use 1 ½ lb (680 g) boneless, skinless breast because it shreds into long, juicy strands after 6 hours on low. Thighs work too; they’ll add a richer flavor and an extra 4 g fat per serving. If you keep frozen chicken on hand, add it straight from the freezer—just separate the pieces so they don’t clump.

Sweet potatoes: Two medium orange-fleshed sweet potatoes (about 1 ¼ lb) give natural sweetness and beta-carotene. Peel them if the skins are blemished; otherwise, a good scrub adds fiber. In summer, substitute carrots or butternut squash.

Cannellini beans: One can, drained and rinsed, thickens the broth once blended. Navy or great northern beans are fine, but cannellini are creamier. If you cook from dry, ¾ cup dried beans (soaked overnight) equals one can.

Low-sodium chicken stock: 4 cups keeps sodium in check; you can season at the end. Look for stock with “chicken bones” in the ingredient list for collagen richness. Vegetable broth works for a pescatarian twist—add a 2-inch strip of kombu for umami.

Greek yogurt: Stirred in at the end, ½ cup plain 2 % yogurt adds tangy creaminess and 10 g protein per serving. Dairy-free? Use coconut milk yogurt; add 1 tsp cornstarch slurry to prevent separation.

Smoked paprika & rosemary: The smoky-sweet duo transports you to a mountain cabin. Fresh rosemary is worth it; dried is stronger—use half. For a Mexican spin, swap in chipotle powder and oregano.

Lemon zest: Non-negotiable. The oils brighten the whole pot and balance the sweet potatoes. Microplane just the yellow, not the bitter pith.

How to Make High-Protein Slow-Cooker Chicken & Sweet Potato Soup

Expert Tips

Variations to Try

• Tex-Mex Swap smoked paprika for 1 tsp ancho chile powder, add frozen corn, and finish with cilantro and a squeeze of lime.
• Curried Replace rosemary with 1 Tbsp mild curry powder and stir in ¼ cup coconut milk instead of yogurt. Top with toasted cashews.
• Italian Use oregano and basil, add a Parmesan rind while cooking, and stir in chopped kale and white beans. Serve with crusty ciabatta.
• Spicy Add 1 chipotle pepper in adobo plus 1 tsp honey; finish with pepper jack on top.
• Seafood Substitute shrimp for chicken; add during last 15 minutes to prevent rubbery texture.

Storage Tips

Refrigerator: Cool soup completely, transfer to airtight glass jars, and refrigerate up to 4 days. The flavors meld beautifully—lunch on day three is chef-kiss.

Freezer: Ladle into labeled quart bags, lay flat to freeze (saves space), and store up to 3 months. Thaw overnight in the fridge or submerge sealed bag in lukewarm water for 30 minutes.

Reheat: Warm gently over medium-low heat, stirring often; add a splash of broth if too thick. Microwave works—cover and heat 2 minutes, stir, then 1-minute bursts till steaming.

Make-ahead meal prep: Double the recipe and portion into 2-cup containers for grab-and-go lunches. Each serving reheats in 3 minutes and keeps you full till dinner.

Frequently Asked Questions

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High-Protein Slow-Cooker Chicken & Sweet Potato Soup

(4.9 from 127 reviews)

Prep

15 min

Cook

6 hr

Servings

6

Ingredients

• 1 ½ lb (680 g) boneless skinless chicken breast
• 2 medium sweet potatoes, peeled and ½-inch dice (about 1 ¼ lb)
• 1 can (15 oz) cannellini beans, drained and rinsed
• 1 small yellow onion, diced
• 3 cloves garlic, minced
• 4 cups low-sodium chicken stock
• 1 tsp smoked paprika
• 1 tsp kosher salt, plus more to taste
• ½ tsp black pepper
• 2 sprigs fresh rosemary (or 1 tsp dried)
• ½ cup plain Greek yogurt (2 %)
• Zest of 1 lemon
• 2 cups baby spinach

Instructions

1. Season chicken: Sprinkle chicken with paprika, salt, and pepper. Let rest 10 min.
2. Load cooker: Place chicken in slow cooker. Add sweet potatoes, beans, onion, garlic, rosemary, and stock. Cover.
3. Cook: Low 6–7 hr or High 3–4 hr, until chicken reaches 165 °F.
4. Shred: Transfer chicken to plate; shred with forks and return to pot.
5. Blend: Blend 2 cups soup with ¼ cup yogurt until smooth; stir back into pot.
6. Finish: Stir in remaining yogurt, lemon zest, and spinach. Cover 5 min to wilt. Taste and adjust salt.

Recipe Notes

For dairy-free, substitute coconut milk yogurt and add 1 tsp cornstarch slurry to prevent separation.

Nutrition (per serving)

387

Calories

42g

Protein

35g

Carbs

8g

Fat