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Chicken Fajita Bake (Paleo + Whole30)

We are pretty big fans of tacos, fajitas and pretty much anything with Mexican flavors! And of course we love simple, quick and easy meals. So, this Paleo and Whole30 chicken fajita bake is basically where all the things collide! You will love this flavor-packed Paleo and Whole30 sheet pan meal that comes together in just 35 minutes.

Sheet pan chicken fajita bake with avocado, lime and cilantro. Butter lettuce fajita shells.

Sheet Pan FTW

You know when you only have to dirty one pan and cleanup is a breeze – doesn’t that just feel right?! We love it when dinner comes together quickly and then also takes minimal time and effort to clean up. This chicken fajita bake is absolutely that! You prep the ingredients and toss them all on a large sheet pan. Then just bake and enjoy! After dinner is finished, just throw the leftovers in a glass storage container, the plates and the bowl from mixing the marinade in the dishwasher and wash ONE PAN! That is it!

Sheet pan chicken fajita bake with avocado, lime, cilantro and butter lettuce.

The Marinade

The marinade has your favorite fajita flavors – chili powder, cumin, lime juice and cilantro. We also added coconut aminos to give it a little more depth. You can prep the chicken and let it marinate for up to 24 hours, but at a minimum get the chicken marinating at the very beginning of making this meal so it has more time to settle in and flavor the chicken.

Sheet pan chicken fajita bake with avocado, lime, cilantro and butter lettuce on sheet pan.

Greens For Shells

We used butter lettuce for the shells for this recipe the day we took pictures, but you could also use any other broad leaf green you like. Some of our favorites are bibb and romaine and also collard greens or swiss chard. If you aren’t concerned with staying Whole30 compliant, you could also use Siete Family Foods grain-free tortillas because duh…they’re dang good!

Your Turn To Try Our Chicken Fajita Bake

If you’re ready for a flavorful, yet simple and quick meal give this chicken fajita bake a try! It’s sure to be a hit for the whole family and you’ll appreciate the minimal effort and cleanup required! Let us know how it goes by leaving a comment below. Also, take a photo and tag us on Instagram @realsimplegood, so we can check it out! If you’re not already following us on Instagram, make sure to give us a follow so we can stay connected!

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Sheet pan chicken fajita bake in butter lettuce shells. Also on a sheet pan.


Chicken Fajita Bake (Paleo + Whole30)

4.55 from 83 votes
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes
Course: Main Course
Servings: 4
We are huge fans of tacos, fajitas and pretty much anything with Mexican flavors! And of course we love simple, quick and easy meals. So, this Paleo and Whole30 chicken fajita bake is basically where all the things collide! You'll love this flavor-packed Paleo and Whole30 sheet pan meal that's ready in just 35 minutes!
Print Recipe Rate Recipe

Ingredients

For the marinade:

  • 1/2 cup coconut aminos (see recipe notes)
  • 2 limes, juice of
  • 1/2 cup cilantro, chopped
  • 1 tbsp cumin
  • 1 tbsp garlic powder
  • 1 tbsp chili powder
  • 1 tbsp ground pepper

For the fajitas:

  • 2 lbs boneless skinless chicken breasts (about 4 breasts)
  • 1 red onion, sliced into thin strips
  • 2 bell peppers, sliced into thin strips
  • 3 cloves garlic, minced
  • 2 tbsp avocado oil, divided
  • Salt and pepper

For shells and toppings:

  • 1 avocado sliced
  • 1/4 cup cilantro chopped
  • 2 bunches broad leaf greens bibb, romaine, chard, etc.
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Instructions 

  • Preheat oven to 400° Fahrenheit.
  • Prepare the marinade by mixing all of the marinade ingredients together in a bowl or shallow dish.
  • Slice up your chicken into 1/2 by 1 inch strips. Place the chicken in the bowl/dish with the marinade. Mix well so that all of the strips are covered with the marinade. Set aside to marinate while you prepare the rest of the ingredients. 
    NOTE: You can prepare the marinade and chicken in advance and marinate the chicken for up to 24 hours. 
  • Chop the onion, bell peppers and garlic as noted.
  • Lightly grease a large sheet pan with 1 tbsp avocado oil. Spread the onion and bell pepper out on the sheet pan. Drizzle with 1 tbsp avocado oil and lightly sprinkle garlic, salt and pepper over everything. Toss to coat.
  • Next, nestle the chicken pieces in with the veggies in the sheet pan. Spread everything out as evenly as possible.
  • Place in the oven to cook for about 15-18 minutes, or until the chicken is cooked through and the vegetables are cooked but still crisp.
  • While the fajitas are cooking, prepare lettuce leaves for shells and toppings as noted.
  • Once the fajitas are cooked, remove from oven and allow to cool for a few minutes.
  • To serve, spoon fajita mixture into lettuce leaves, top with avocado and cilantro and enjoy.

Video

Notes

Tried this recipe?Take a picture and tag @realsimplegood so we can see it!
Chicken Fajita Bake (Paleo + Whole30)

56 thoughts on “Chicken Fajita Bake (Paleo + Whole30)

  • The marinade is so flavorful. The recipe is easy and perfect. No changes needed. Such a hit I am planning to make it again next week!

  • Delicious!!! 5 stars all day! I again meal prepped this for a week of whole 30 and it exceeded my expectations! I even accidentally marinated it for about 36-40 hours and the flavor was phenomenal! Definitely will be remaking again!

  • So dang delish! This will be a staple in our house. I love all the recipes I’ve tried from you guys. This was so simple and perfect for a Sunday night dinner after a busy day. The leftovers were perfect the next day for lunch too. The chicken was tender and the juices that were on the pan after cooking were perfect over rice. Even though the flavors were perfect, I want to remember to marinate over night.

    • So happy to hear this one was such a hit! Thanks for sharing on IG and for taking the time to come back to leave a rating and review! We really appreciate it!

  • Delicious for both me (doing whole 30) and my husband who isn’t! Such an easy meal that we will incorporate into our weekly dinner rotations!

    • We’re so happy it was a hit for you both! Thanks for giving our recipe a try and also for coming back to share your rating and review. We really appreciate it! 🙂

  • This recipe is amazing!!! My family loved it!! I prepped the food in the morning and when I got home from work I quickly put everything on the baking sheet and in 18 min dinner was ready. So easy and delish. I love the marinade too. This recipe will be used again soon!!

  • AMAZING recipe – this will be my go-to for fajitas now. And the marinade seems like it would be good with a variety of protein sources. Hubby said these were the best he’s ever eaten! I have to agree. The coconut aminos give just the right hint of sweetness, and the whole dish is packed with flavor. A staple meal for us now, thank you!!!!!

  • We made these tonight and added a jalapeño to the mix! The marinade is very flavorful and we saved 1/3 cup to use as a topping sauce for our tacos afterwards! This would also be amazing over some riced cauliflower! Thank you!

  • This is hands down the best fajita recipe I’ve ever tried. This marinade made the chicken SO flavorful. My kids couldn’t stop raving about it. Even my child that doesn’t like chicken ate an entire fajita. I have leftovers for lunch today and I can’t wait to eat it again. Thanks so much for sharing this!

  • I made this recipe last night and it is officially my new go to fajita recipe! It’s so simple to make and packed with so much flavor. I love a good sheet pan dinner and this one is my new favorite. Plus, you can’t beat the ingredients! Thanks for another delicious recipe!

  • This recipe is my new go to fajita recipe! It’s so simple to make and packed with flavor! I love a good sheet pan dinner and this one is my new favorite. Plus, you can’t beat the ingredients! Thanks for another delicious recipe!!

  • These were awesome! The chicken had so much flavor and was so tender. Amazing recipe! My husband has already requested it again.

  • This was amazing! Best thing about it was one pan…easy cooking and easy clean up! The marinade is also good for grilling too.

  • My entire family absolutely LOVES this recipe! We make it with lettuce wraps and it’s amazing!! Thank you!!

  • I love this recipe. I work as a busy ER nurse and this is a super easy And delicious meal prep recipe that keeps well. My room mates love it too! Thanks for sharing.

  • By far one of my favorite recipes I found via Pinterest! My whole family loves and devours this recipe every time I make it (which is often!). It’s super easy and I LOVE that it’s a one-sheet meal. As a busy Mom of two, I really appreciate that! Your blog sucked me in as soon as I started to look around. I love finding new recipes and learning about the two of you. So happy for your new bundle of joy too! Enjoy every minute, it goes by so quickly. You’ve got a new friend in Boston! 🙂

  • What Whole30 food can I substitute for coconut aminos? I’m allergic to coconut :/ I see soy sauce suggested above, but it’s not Whole30 compliant.

    • Hi Anna, there really aren’t a lot of great options for this one. You could try a mixture of mostly beef broth with a tbsp or so of fish sauce. Or you could try this homemade recipe and omit the molasses. We are going to work on a recipe for this though, as I too might have an allergy to coconut :(.

  • We LOVED these! Arguably the best fajitas I’ve ever had. I used low sodium soy sauce instead of the coconut aminos. The whole family loved it! Thanks for a great recipe.

  • This is my first time to leave a comment on a recipe I’ve found on Pinterest! This recipe was so amazing, I had no choice but to! LOVED IT! Thank you for sharing!

    • If you don’t mind using soy, you could use soy sauce (but start with less and taste since soy sauce is much saltier than coconut aminos). The brand Bragg’s also has an aminos product that is soy based that would be an option. If you have Amazon Prime you might just order online and make this one in a couple days once the coconut aminos arrive. They’re a really big part of the flavor profile for this recipe!

  • Made this tonight. 5 Stars. Hands down. I used exact ingredients, but not measurements. I was concerned how heavy the seasonings would be. So I winged it with the measurements. I’ve never used aminos with fajita spices Glad I trusted the recipe.

  • Made this tonight with chicken tenders (frozen, then thawed). Marinated 8+ hours. Used grape seed oil to toss mixture & on sheet pan
    ( handles high heat & doesn’t take away from marinade flavor, in my personal opinion). Absolutely outstanding, beginning with flavor & ending with super easy clean up. Thanks so much for posting!! Will definitely make this again!!!!

  • Made this tonight! Delicious! The chicken was flavorful and tender! Definitely going to be on rotation in my house for dinner.

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