Let me tell you about my absolute favorite weeknight lifesaver – this low carb chicken tortilla soup that tastes like a warm hug from the inside. I first stumbled onto this recipe during my “let’s try keto” phase (we’ve all been there, right?), and wow, did it become a keeper! This soup gives you all those crave-worthy Mexican flavors without the carb overload. Tender chicken swimming in a smoky, slightly spicy broth, topped with creamy avocado and a squeeze of lime – it’s heaven in a bowl.
What I love most is how it satisfies those tortilla soup cravings while staying low carb. The secret? We’re loading up on flavor-packed ingredients instead of starchy fillers. One spoonful and you’ll forget it’s “diet food” at all. My kids actually request this now, and that’s saying something when you’re competing with mac and cheese!

Why You’ll Love This Low Carb Chicken Tortilla Soup
This isn’t just another soup recipe – it’s a game changer for busy weeknights. Here’s why it’s become my go-to:
- Crazy easy to make: One pot, 30 minutes, and you’re done. Even my teenager can whip this up!
- Flavor that punches way above its weight: Smoky cumin, spicy jalapeño, and bright lime make every spoonful exciting.
- Only 12g net carbs per bowl: All the comfort of tortilla soup without the carb crash afterward.
- Meal prep superstar: Tastes even better the next day and freezes like a dream.
- Customizable to your taste: More spice? Extra cheese? This soup is your canvas!
Ingredients for Low Carb Chicken Tortilla Soup
Gather these simple ingredients – I promise you probably have most in your pantry already! The magic happens when these fresh, flavorful components come together:
- For the base: 1 lb boneless, skinless chicken breasts (or thighs if you’re feeling fancy)
- Veggie power: 1 tbsp olive oil, 1 medium onion (diced), 3 garlic cloves (minced), 1 bell pepper (any color, diced), 1 jalapeño (seeded and minced)
- Spice squad: 1 tsp ground cumin, 1 tsp chili powder, ½ tsp smoked paprika
- Liquid gold: 4 cups chicken broth, 1 can (14.5 oz) diced tomatoes
- Fresh finishes: ¼ cup chopped cilantro, 1 sliced avocado, ¼ cup shredded cheese (cheddar or Mexican blend), lime wedges
Pro tip: Don’t skip the fresh lime at the end – that bright acidity takes this soup from good to “oh wow!”
How to Make Low Carb Chicken Tortilla Soup
Alright, let’s get cooking! This soup comes together so easily – just follow these simple steps and you’ll have a steaming pot of comfort in no time. I’ve made this dozens of times, and these are the little tricks I’ve picked up along the way.
Step 1: Sauté the Vegetables
First, grab your favorite soup pot (I use my trusty Dutch oven) and heat that olive oil over medium heat. You’ll know it’s ready when the oil shimmers slightly. Toss in your diced onion, bell pepper, and jalapeño – listen for that satisfying sizzle! Stir occasionally while they cook for about 5 minutes. You’re looking for the onions to turn translucent and the peppers to soften just a bit. Don’t rush this step – those softened veggies are building your flavor foundation!
Step 2: Add the Spices and Broth
Now for the magic! Push the veggies to one side and add your minced garlic to the cleared space. Let it cook for just 30 seconds – you’ll smell that amazing aroma when it’s ready. Quickly stir in the cumin, chili powder, and smoked paprika. The spices will coat the veggies in this gorgeous reddish-brown color. Pour in your chicken broth and diced tomatoes (juice and all!), then give everything a good stir to combine. Bring it to a gentle boil – you’ll see little bubbles forming around the edges.
Step 3: Cook and Shred the Chicken
Time for the chicken! Carefully add your chicken breasts to the bubbling broth. Reduce the heat to a simmer (just a few bubbles breaking the surface) and let it cook uncovered for about 20 minutes. The chicken is done when it reaches 165°F inside or when it shreds easily with forks. I like to remove the chicken to a cutting board, let it cool for a minute (so I don’t burn my fingers!), then shred it using two forks. Return all that juicy chicken to the pot – don’t leave any delicious bits behind!
Step 4: Finish and Serve
Almost there! Stir in your chopped cilantro and let the soup simmer for another 5 minutes to let all the flavors marry. Now comes the fun part – toppings! I always set out bowls with sliced avocado, shredded cheese, extra cilantro, and lime wedges. Let everyone customize their bowl – my husband piles on the cheese while I go heavy on the lime. The creamy avocado against the spicy broth? Absolute perfection!

Tips for the Best Low Carb Chicken Tortilla Soup
After making this soup more times than I can count, here are my hard-earned secrets for perfection:
- Control the heat: Remove jalapeño seeds for mild soup or leave them in for extra kick. Taste the broth before serving and add a pinch of cayenne if it needs more fire.
- Fresh is best: That bottled lime juice won’t give you the same bright pop as fresh wedges squeezed at the table – trust me on this one.
- Soup gets better with age: Let it cool completely before refrigerating, and the flavors deepen beautifully overnight. Just add fresh toppings when reheating.
- Freeze like a pro: Portion out soup (without avocado) in freezer bags laid flat – they’ll stack neatly and thaw in minutes when cravings strike.
Bonus tip: Keep extra cilantro in a glass of water in the fridge – it stays fresh for days this way!
Variations for Low Carb Chicken Tortilla Soup
One of my favorite things about this soup is how easily it adapts to whatever I’ve got in the fridge! Here are some delicious twists I’ve tried:
- Cauliflower rice boost: Stir in a cup of riced cauliflower during the last 5 minutes of cooking – it soaks up all that amazing broth flavor while adding texture.
- Protein swap: Used up all your chicken? Leftover rotisserie chicken works great (just simmer for 5 minutes), or try shrimp for a pescatarian version.
- Creamy dream: For extra richness, swirl in 2 tablespoons of cream cheese or sour cream at the end – it makes the broth velvety smooth.
The possibilities are endless – this soup loves playing dress-up!
Serving Suggestions for Low Carb Chicken Tortilla Soup
This soup shines all on its own, but here are my favorite ways to make it a complete meal. For a fresh crunch, I love pairing it with a simple jicama slaw tossed in lime juice – the crispness cuts through the rich broth perfectly. If you’re craving something more substantial, roasted zucchini spears make a fantastic low-carb dipper. And always – I mean always – put out extra lime wedges and sliced radishes. Their peppery bite and citrus zing take each spoonful to new heights!
Storage and Reheating Instructions
This soup actually gets better as it sits – the flavors have more time to become best friends in your fridge! Let it cool completely before storing (hot soup can make your fridge work overtime). It’ll keep beautifully in an airtight container for 3-4 days. For freezing, I portion it into freezer bags (leave out the avocado!) and lay them flat – they’ll stack neatly and thaw in a flash. When reheating, just warm it gently on the stove over medium-low heat until bubbly. If it seems too thick, splash in a little broth or water to loosen it up. The toppings? Always add those fresh when serving – no one wants soggy avocado!
Nutritional Information
Just a quick note – these numbers are estimates based on my exact ingredients, so yours might vary slightly depending on brands and exact measurements. But here’s the scoop on what you’re getting in each delicious bowl:
- 280 calories – satisfying without being heavy
- 12g net carbs – all those flavors with minimal impact
- 5g fiber – thank you, avocado and veggies!
- 28g protein – that chicken really pulls its weight
The best part? You’re loading up on nutrients while keeping it low carb – now that’s what I call a win-win!
Frequently Asked Questions
Can I use frozen chicken? Absolutely! Just pop the frozen chicken breasts right into the broth. They’ll take a bit longer to cook (about 30-35 minutes instead of 20), so be patient. Just make sure they’re fully cooked and reach 165°F before shredding.
How can I make it spicier? Easy! Leave the seeds in the jalapeño for extra heat, or add a pinch of cayenne pepper when you’re mixing in the spices. If you’re feeling adventurous, toss in a diced serrano pepper instead of jalapeño – but be warned, it packs a punch!
Can I make this in a slow cooker? Yes, and it’s perfect for hands-off cooking! Sauté the veggies first (trust me, it makes a difference), then dump everything into the slow cooker. Cook on low for 6-7 hours or high for 3-4 hours. Shred the chicken right in the pot.
What can I use instead of avocado? No avocado? No problem! Try a dollop of Greek yogurt or sour cream for creaminess. Or skip it altogether and add extra cheese and a squeeze of lime – still delicious!
Is it freezer-friendly? Totally! Just leave out the avocado, cilantro, and lime before freezing. Portion it into freezer bags or containers, and it’ll keep for up to 3 months. Thaw overnight in the fridge and reheat gently on the stove.
PrintLow Carb Chicken Tortilla Soup
A flavorful low carb chicken tortilla soup made with tender chicken, vegetables, and spices. This hearty soup delivers all the traditional flavors without the carbs.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Category: Soup
- Method: Stovetop
- Cuisine: Mexican
- Diet: Low Calorie
Ingredients
- 1 lb boneless, skinless chicken breasts
- 1 tablespoon olive oil
- 1 medium onion, diced
- 3 cloves garlic, minced
- 1 bell pepper, diced
- 1 jalapeño, seeded and minced
- 1 teaspoon ground cumin
- 1 teaspoon chili powder
- 1/2 teaspoon smoked paprika
- 4 cups chicken broth
- 1 can (14.5 oz) diced tomatoes
- 1/4 cup fresh cilantro, chopped
- 1 avocado, sliced
- 1/4 cup shredded cheese
- Lime wedges for serving
Instructions
- Heat olive oil in a large pot over medium heat
- Add onion, bell pepper, and jalapeño. Cook for 5 minutes
- Add garlic and cook for 1 minute
- Stir in cumin, chili powder, and paprika
- Add chicken broth and diced tomatoes. Bring to a boil
- Add chicken breasts. Reduce heat and simmer for 20 minutes
- Remove chicken and shred with two forks
- Return shredded chicken to the pot
- Stir in cilantro and simmer for 5 minutes
- Serve topped with avocado, cheese, and lime wedges
Notes
- For spicier soup, keep the jalapeño seeds
- Add more broth if you prefer a thinner soup
- Store leftovers in refrigerator for up to 3 days
- Freeze without toppings for up to 3 months
Nutrition
- Serving Size: 1 bowl
- Calories: 280
- Sugar: 6g
- Sodium: 820mg
- Fat: 14g
- Saturated Fat: 3g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 5g
- Protein: 28g
- Cholesterol: 65mg
