Sheet Pan Chicken Fajitas with Cumin and Lime
Juicy chicken thighs, sweet peppers and red onion roasted with a from-scratch fajita spice, then finished with lime and cilantro.
The short answer
These sheet pan chicken fajitas take about 10 minutes of hands-on work and bring roughly 29g of protein a serving. Toss chicken thighs, peppers and onion with a quick cumin chili spice mix, roast hot, and finish with lime and cilantro.
On this page
You want sizzling fajitas, but standing over a skillet in batches is not happening tonight. So the oven does the work while you change clothes. Like every dinner in this set, it uses five main ingredients. Oil, salt, pepper and dried spices don’t count, because they already live in your kitchen.
It’s one of the meals from our guide to 5-ingredient clean dinners, and it’s built the Clean Fit Fab way: real food, big flavor, and no seed oils.
Why these sheet pan chicken fajitas work on tired nights
- One pan, one cleanup. Everything roasts together.
- Thighs stay juicy. They forgive a few extra minutes in a hot oven.
- The spice mix is from scratch. It takes one minute and you skip the packet.
- Lime at the end makes it pop. It tastes bright, not heavy.
Colorful peppers bring vitamin C and fiber to the plate. The Harvard Nutrition Source on vegetables covers why a full half plate of them is worth it.
The flavor: what makes it taste so good
Fajitas live or die by the seasoning. So we stack smoky, earthy and warm spices, then let the hot oven char the edges of the peppers and onion.
- Cumin and chili powder for that classic fajita base
- Smoked paprika for a grill-like smoke
- Garlic powder and dried Mexican oregano
- Fresh lime and cilantro to finish
What you need
Here’s a quick look at the ingredients. Exact amounts are in the recipe card below.
- The 5 ingredients: boneless skinless chicken thighs, bell peppers, red onion, limes, fresh cilantro
- Pantry: avocado oil, ground cumin, chili powder, smoked paprika, garlic powder, dried Mexican oregano, sea salt, black pepper
Also, a note on fat: we cook with extra virgin olive oil, avocado oil, butter or ghee. They taste better, and they’re real food.
How to make sheet pan chicken fajitas
First, heat the oven to 425 degrees. Next, slice the chicken, peppers and onion and toss them with avocado oil and the spice mix. Then roast for 20 to 22 minutes and finish with lime and cilantro. The full recipe card is below.
Mexican · Main Course
Sheet Pan Chicken Fajitas with Cumin and Lime
Chicken thighs, peppers and red onion roasted with a from-scratch fajita spice, finished with lime and cilantro.
Prep
10 minCook
22 minTotal
32 minservings
4Vegan version. Pressed extra-firm tofu strips roast in the same spice mix, and black beans join the pan in the last few minutes for extra protein.
Ingredients
The 5 ingredients
Pantry
The 5 ingredients
Pantry and extra protein
Method · tap a step to mark it done
Heat the oven to 425 degrees F (220 C) and line a large sheet pan with parchment.
Mix the cumin, chili powder, smoked paprika, garlic powder, oregano, salt and pepper in a small bowl.
Toss the chicken, peppers and onion with the avocado oil and the spice mix right on the pan. Spread everything in one layer.
Roast for 20 to 22 minutes, tossing once halfway, until the chicken reaches 165 degrees F and the vegetables are charred at the edges.
Start 22 min timerSqueeze the lime juice over the hot pan, scatter the cilantro and serve with lime wedges.
Heat the oven to 425 degrees F and line a sheet pan with parchment.
Toss the tofu, peppers and onion with the avocado oil and spices on the pan in one layer.
Roast for 25 minutes, tossing once, until the tofu is golden at the edges.
Start 25 min timerAdd the black beans for the last 5 minutes so they warm through.
Start 5 min timerFinish with lime juice and cilantro and serve with lime wedges.
Calories
330Protein
29gCarbs
12gFat
18gFiber
3gCalories
320Protein
19gCarbs
25gFat
17gFiber
8gNutrition is per serving and estimated.
Serving ideas
Pile it into warm cassava or sprouted grain tortillas, butter lettuce cups, or a bowl of rice and black beans. Sliced avocado on top is never a bad idea.
Nutrition at a glance: each serving has about 330 calories, 29g protein, 12g carbs and 3g fiber. Numbers are estimates and change with your exact ingredients.
Swaps and variations
- Use shrimp and roast it for the last 6 minutes only.
- Swap chicken for sliced flank steak.
- Add a sliced jalapeno to the pan for more heat.
- Top with a spoon of plain Greek yogurt instead of sour cream.
Make-ahead and storage tips
Leftover fajitas keep for up to 4 days in the fridge. Reheat them in a hot skillet or the air fryer for 3 to 4 minutes so the peppers stay a little crisp.
Frequently asked questions
Can I use chicken breast for sheet pan chicken fajitas?
Yes. Slice it thin and check it at 15 to 18 minutes, because breast dries out faster than thighs.
Why do my fajita vegetables get soggy?
The pan is too crowded. Spread everything in one layer, or use two sheet pans, so it roasts instead of steams.
What tortillas should I use?
Look for cassava, sprouted grain or almond flour tortillas made with olive or avocado oil. Lettuce cups work too.
Save this one for your next long day. Want more? Try our ginger scallion salmon next.
This article is for general information and is not medical or nutrition advice.
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