30-Minute Low Carb Chicken Tortilla Soup

This Low Carb Chicken Tortilla Soup is a hearty, spicy bowl of comfort that delivers all the deep, smoky flavor of the classic without a pile of carb-heavy tortilla chips. Tender shredded chicken, fire-roasted tomatoes, and warm spices simmer together in one pot.

A clever low carb swap gives you the crunch you are looking for, and everything comes together in about half an hour. It is the kind of soup that feels like a weekend project but actually works on a busy Tuesday.

A Cozy Soup That Doesn’t Taste Low Carb

Toasting the spices before adding the liquid builds a deep, roasty backbone that makes this taste like it simmered all afternoon. The broth ends up rich and slightly smoky, with a gentle heat that warms without burning.

That handful of crispy low carb tortilla strips on top does the same job as a pile of fried tortilla chips, so you still get the contrast of crunchy and silky in every spoonful. It is the detail that makes the soup feel complete, not deprived.

Ingredients

• 1 tbsp olive oil: for sautéing; avocado oil works just as well
• 1 small onion, diced: yellow or white
• 1 bell pepper, any color, diced: red or green adds sweetness or bite
• 1 jalapeño, seeded and minced: optional; leave some seeds in if you want extra heat
• 3 cloves garlic, minced: fresh gives the brightest punch
• 1 tsp ground cumin: the warm, earthy base note
• 1 tsp chili powder: use a mild American-style blend
• 1/2 tsp smoked paprika: for that subtle campfire smokiness
• 1/2 tsp salt, plus more to taste: kosher or sea salt
• 1 (14.5-oz) can fire-roasted diced tomatoes, undrained: the fire-roasted kind makes a big flavor difference
• 4 cups chicken broth: low-sodium so you control the seasoning
• 1.5 lbs boneless skinless chicken breasts: or swap thighs for extra juiciness
• Juice of 1 lime: brightens everything at the end
• 1 low carb tortilla (about 25g), cut into thin strips: look for a brand with 4 to 5g net carbs per tortilla; totally optional but worth it
• For serving: diced avocado, shredded cheddar cheese, sour cream, chopped cilantro

Variations / Substitutions

• Swap the chicken breasts for thighs: they stay extra tender and add a little more richness; simmer for 20 to 25 minutes instead
• Add a chopped chipotle pepper in adobo sauce: stir it in with the tomatoes for a smoky, spicier broth
• Go dairy-free: skip the cheese and sour cream, or use a coconut cream drizzle and dairy-free shreds

Creamy Low Carb White Chicken Enchiladas are the main dish we love pairing with this tortilla soup.

How to Make Low Carb Chicken Tortilla Soup

Step 1: Sauté the Vegetables

Heat the 1 tbsp olive oil in a large pot or Dutch oven over medium heat. Add the diced onion, bell pepper, and minced jalapeño. Cook, stirring occasionally, until the vegetables soften and the onion turns translucent, about 5 minutes.

You will notice the peppers lose their raw crunch and the onion smells sweet instead of sharp. That is your signal they are ready.

Step 2: Toast the Spices

Add the minced garlic, 1 tsp cumin, 1 tsp chili powder, 1/2 tsp smoked paprika, and 1/2 tsp salt. Stir constantly for about 1 minute, just until the spices turn fragrant and the garlic smells nutty, not harsh.

The kitchen will fill with a warm, earthy aroma. Keep the mixture moving so nothing scorches on the bottom of the pot, because burnt garlic turns bitter.

Step 3: Simmer the Soup

Pour in the entire can of fire-roasted tomatoes with their juices and the 4 cups of chicken broth. Stir to combine, then bring the liquid to a boil. Once boiling, add the 1.5 lbs of chicken breasts, pressing them down so they are submerged. Reduce the heat to low, cover the pot, and let it simmer for 15 to 20 minutes. The chicken is done when it reaches 165°F inside or shreds easily when you test a thick part with a fork.

During the simmer, the broth will deepen to a rusty red and the surface will barely bubble. That gentle heat keeps the chicken tender while the flavors meld.

Step 4: Shred the Chicken

Use tongs to transfer the cooked chicken to a cutting board. Shred the meat with two forks, pulling the pieces into bite-sized strands. Return all the shredded chicken to the pot and stir in the juice of 1 lime. Taste the broth and add more salt if it needs it.

The meat should come apart with almost no effort. Once the chicken goes back in, the soup will look a little thicker and heartier right away.

Step 5: Fry the Tortilla Strips

While the soup finishes simmering, heat a small nonstick skillet over medium-high heat with a light drizzle of oil. Scatter the tortilla strips in a single layer and cook for 2 to 3 minutes per side, until they are golden brown and crisp. Transfer them to a paper towel so they stay crunchy.

You can bake them instead at 400°F for 8 to 10 minutes if you prefer a hands-off method. Either way, they will puff slightly and turn a shade or two darker, giving you that familiar tortilla chip crackle without the load of carbs.

Step 6: Ladle and Garnish

Ladle the hot soup into bowls and pile on the crispy tortilla strips. Finish with a handful of diced avocado, a sprinkle of shredded cheddar, a dollop of sour cream, and fresh chopped cilantro. Serve right away while everything is hot and the strips are crunchy.

The contrast of the warm, spiced broth against cool sour cream and creamy avocado is what makes every bite feel indulgent. The soup is bright, hearty, and completely satisfying, no one at the table will miss the high-carb tortillas.

Tips for the Best Low Carb Tortilla Soup

• Rotisserie chicken is your shortcut friend. Shred the meat and add it along with the broth, then simmer only 10 minutes to let the flavors get cozy.
• Keep an eye on the chicken breasts at the 15-minute mark so they do not overcook and turn dry. A quick check with a fork will tell you if they shred easily.
• For a creamier, richer broth, drop in 2 oz of cream cheese after you shred the chicken and stir until it melts completely.
• If you like a greener flavor, stir in a small can of diced green chiles with the tomatoes. It adds a mild, fresh heat without extra spice.

Simmer times depend on the chicken you choose:

Storing Leftovers

• Refrigerate: Store leftover soup in an airtight container for up to 4 days. The tortilla strips soften as they sit, so keep them separate and add fresh ones when you reheat, or just enjoy the soup without the crunch.
• Reheating: Warm individual portions gently on the stovetop over medium-low heat or in the microwave, stirring once. The soup thickens in the fridge, so splash in a little extra broth if needed.
• Freezing: This soup freezes beautifully for up to 3 months. Leave out the lime juice, tortilla strips, and fresh toppings until you are ready to serve, then stir in the lime and garnish.

What to Serve with Low Carb Chicken Tortilla Soup

A crisp side salad with a creamy cilantro-lime dressing balances the warm, smoky broth. If you want something more substantial, a small scoop of cauliflower rice stirred right into the bowl soaks up the spiced liquid like a grain would. For a party spread, set out a tray of extra toppings, sliced radishes, pickled jalapeños, and lime wedges so everyone can build their own bowl.

Frequently Asked Questions

Can I make this in a slow cooker?

Yes. Put everything except the chicken and toppings into the slow cooker, stir, then add the raw chicken breasts. Cook on low for 4 to 6 hours, shred the chicken, and stir in the lime juice before serving.

How many net carbs are in a serving?

With one low carb tortilla strip batch divided among 4 bowls and the toppings listed, you are looking at around 6g net carbs per serving. The exact number depends on your tortilla brand and how generous you are with the avocado.

Can I use chicken thighs instead of breasts?

Absolutely. Thighs add even more flavor and stay very moist. They need a slightly longer simmer, about 20 to 25 minutes, so check the table above.

What is the best low carb tortilla to use?

Look for any store-bought flour tortilla that has 4 to 5g net carbs per tortilla. Brands like Mission Carb Balance and La Tortilla Factory work well and crisp up nicely in a dry skillet.

Do the tortilla strips have to be fried?

No. You can bake them in a 400°F oven for 8 to 10 minutes on a parchment-lined sheet pan, turning once, until golden and crisp. They puff and brown just the same.

Low Carb Chicken Tortilla Soup Recipe

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Prep Time 10 minutes mins

Cook Time 20 minutes mins

Total Time 30 minutes mins

Servings: 4 servings

Calories: 310

Ingredients Method Notes

Ingredients

  

• 1 tbsp olive oil
• 1 small onion, diced
• 1 bell pepper, any color, diced
• 1 jalapeño, seeded and minced (optional)
• 3 cloves garlic, minced
• 1 tsp ground cumin
• 1 tsp chili powder
• 1/2 tsp smoked paprika
• 1/2 tsp salt, plus more to taste
• 1 (14.5-oz) can fire-roasted diced tomatoes, undrained
• 4 cups chicken broth
• 1.5 lbs boneless skinless chicken breasts
• Juice of 1 lime
• 1 low carb tortilla, cut into thin strips
• For serving: diced avocado, shredded cheddar cheese, sour cream, chopped cilantro

Method

 

1. Heat oil in a large pot over medium heat. Sauté onion, bell pepper, and jalapeño until softened, about 5 minutes.
2. Add garlic, cumin, chili powder, smoked paprika, and salt. Cook, stirring, for 1 minute until fragrant.
3. Stir in the tomatoes and broth. Bring to a boil, add the chicken breasts, reduce heat to low, cover, and simmer 15 to 20 minutes until the chicken is cooked through.
4. Remove the chicken, shred it with two forks, and return it to the pot. Stir in the lime juice and adjust salt to taste.
5. Heat a small skillet with a drizzle of oil over medium-high heat. Cook the tortilla strips in a single layer for 2 to 3 minutes per side until golden and crisp. Transfer to a paper towel.
6. Ladle soup into bowls, top with tortilla strips, avocado, cheese, sour cream, and cilantro. Serve immediately.

Notes

The tortilla strips add the signature crunch but are optional; the soup is still delicious without them. If you like more heat, leave some jalapeño seeds in during step one. This soup thickens as it sits, so add a splash of broth when reheating leftovers.