Keto Shrimp Fajitas
Sizzling garlic-lime shrimp seared with charred bell peppers and onions, all in one skillet. At just 6.4g net carbs per serving and ready in 25 minutes, these keto shrimp fajitas deliver Tex-Mex flavor without the tortillas or carb crash.
Head of Nutrition · June 18, 2026
Nutrition per serving
Per serving · makes 4. Values are estimates; brands vary.
These keto shrimp fajitas bring all the smoky, charred Tex-Mex flavor you crave to a single sizzling skillet — and they come together in just 25 minutes. Juicy garlic-lime shrimp and blistered peppers make a fast, satisfying low-carb dinner.
Ingredients
- 1.5 lb large shrimp, peeled and deveined
- 3 tbsp avocado oil, divided
- 1 medium green bell pepper, thinly sliced
- 1 medium red bell pepper, thinly sliced
- 1/2 medium yellow onion, thinly sliced
- 3 cloves garlic, minced
- 2 tsp chili powder
- 1 tsp ground cumin
- 1 tsp smoked paprika
- 1/2 tsp sea salt
- 1/4 tsp cayenne pepper (optional)
- 1 lime, juiced (about 2 tbsp)
- 2 tbsp chopped fresh cilantro
Instructions
- 1
In a bowl, toss the shrimp with 1 tbsp avocado oil, chili powder, cumin, smoked paprika, salt, cayenne, and the minced garlic. Let it sit while you slice the vegetables.
- 2
Heat 1 tbsp avocado oil in a large cast-iron or stainless skillet over medium-high heat. Add the sliced bell peppers and onion and cook, stirring occasionally, for 6 to 7 minutes until charred at the edges but still slightly crisp. Transfer to a plate.
- 3
Add the remaining 1 tbsp oil to the same skillet. Lay the shrimp in a single layer and sear for 1.5 to 2 minutes per side, until pink, opaque, and lightly browned. Avoid overcooking.
- 4
Return the peppers and onion to the skillet, pour in the lime juice, and toss everything together for 30 seconds to combine and warm through.
- 5
Remove from heat, scatter with fresh cilantro, and serve hot with lime wedges.
Tips & notes
- Serve over cauliflower rice or wrapped in butter lettuce leaves or low-carb almond flour tortillas to keep the meal keto.
- Pat the shrimp very dry before seasoning so they sear instead of steam — this is the key to a good char.
- Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently in a skillet; the microwave can make shrimp rubbery.
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Frequently asked questions
- How many carbs are in keto shrimp fajitas?
- Each serving has 6.4g net carbs (8.6g total carbs minus 2.2g fiber), along with 282 calories, 26.5g protein, and 16.5g fat. This recipe makes 4 servings.
- Can I make these shrimp fajitas dairy-free?
- Yes — this recipe is already naturally dairy-free. Just be mindful of toppings like cheese or sour cream if you add them, and choose dairy-free versions to keep it compliant.
- What should I serve with keto shrimp fajitas instead of tortillas?
- Skip the flour tortillas, which are high in carbs. Serve the fajitas over cauliflower rice, in crisp butter lettuce cups, or in low-carb almond or coconut flour tortillas to stay keto.
