Easy Low-Carb Beef Fajita Lettuce Wraps

Dinner, Red Meat

March 9, 2026

Your New Favorite Low-Carb Dinner!

Say goodbye to carb-heavy tortillas and hello to your new weeknight obsession: vibrant, sizzling Beef Fajita Lettuce Wraps! We’re talking perfectly seasoned ground beef, sweet bell peppers, and savory onions all tucked into a crisp, cool lettuce cup. It’s all the smoky, zesty flavor you crave from a classic fajita, but in a lighter, low-carb package that comes together in under 30 minutes. Get ready to build the ultimate healthy taco bar right in your own kitchen!

Ingredients

• FOR THE FAJITA FILLING
• 1 head crisp Boston or Romaine lettuce, leaves separated
• 1 pound / 450g organic ground beef
• ½ cup sliced mixed red and green bell peppers
• ½ cup sliced onion
• FOR THE HOMEMADE FAJITA SEASONING
• 1 tsp. chili powder
• ¾ tsp. paprika
• ¾ tsp. cumin
• ½ tsp. onion powder
• ½ tsp. Celtic sea salt
• ⅜ tsp. garlic powder
• 1 pinch cayenne pepper
• FOR SERVING
• Fresh guacamole
• Your favorite salsa
• Organic sour cream, optional

Instructions

1. DIRECTIONS
2. In a small bowl, whisk together all the fajita seasoning spices with ¼ cup of water to create a slurry.
3. In a medium bowl, combine the ground beef, sliced peppers, and onions. Pour the seasoning slurry over the top and stir until everything is thoroughly coated.
4. For the best flavor, cover and refrigerate overnight. If you’re short on time, let it marinate for at least 5 minutes while you prep your toppings.
5. Heat a large skillet or pan over medium-high heat. Add the beef and vegetable mixture to the hot pan.
6. Cook for about 6-8 minutes, breaking up the beef with a spatula and stirring occasionally, until the beef is fully cooked and the vegetables are tender-crisp.
7. Transfer the hot fajita mixture to a serving bowl. Set up a “taco bar” with the fresh lettuce cups, guacamole, salsa, and sour cream, and let everyone build their own perfect bite!

Nutritional Information

• A HEALTHIER TACO NIGHT
• Here’s how our lettuce wrap version stacks up against a traditional taco, per serving
• “Healthified” Taco: 341 Calories, 24g Fat, 23g Protein, 8g Carbs, 2g Fiber
• Traditional Taco: 340 Calories, 20g Fat, 16g Protein, 24g Carbs, 6g Fiber
• While the calories are similar, our version packs more protein and slashes the carbs by over 65%!

Pro Tips

• FOR PERFECT FAJITA WRAPS
• For an even faster weeknight meal, marinate the beef and veggie mixture in the fridge for up to 24 hours. The flavor will be even better!
• Don’t be afraid to add more veggies. Sliced mushrooms, zucchini, or corn would all be delicious additions to the mix.
• To make your lettuce cups extra sturdy, double them up. This helps prevent any delicious filling from spilling out.
• Adjust the heat to your liking. For a milder flavor, reduce or omit the cayenne pepper. For a spicier kick, add an extra pinch or a dash of hot sauce.

FAQ

Q: What kind of lettuce is best for fajita wraps
A: The recipe recommends using a crisp lettuce like Boston or Romaine for the best results. For extra sturdy cups that hold the filling well, you can double up the leaves.

Q: Can I make these beef fajita lettuce wraps ahead of time
A: Yes, for the best flavor and an even faster meal, you can marinate the ground beef and vegetable mixture in the refrigerator for up to 24 hours before cooking.

Q: Are these fajita lettuce wraps keto-friendly
A: With only 8 grams of carbs and 2 grams of fiber per serving, these lettuce wraps are an excellent low-carb and keto-friendly dinner option, slashing carbs by over 65% compared to traditional tacos.

Q: How can I customize this fajita recipe
A: You can easily customize this recipe by adding more vegetables like sliced mushrooms or zucchini. To adjust the heat, simply reduce or omit the cayenne pepper for a milder flavor or add an extra pinch for a spicier kick.

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