Hi, I’m Hannah! Let’s talk about the “Sunday Scaries.” For me, it used to be a feeling of dread that would creep in late Sunday afternoon, often triggered by one simple question: “What are we going to eat this week?” The thought of having to cook a full meal from scratch every single night felt overwhelming. My absolute favorite solution, the habit that transformed my weeks, is this recipe for Easy Sheet Pan Chicken Fajitas. I dedicate about an hour on Sunday to this simple process, and in return, I get back hours of time and peace of mind during the week. It’s a system, a good habit, that removes stress and sets you up for a week of nourishing, delicious meals.

Table of Contents

Why You’ll Love This Recipe

The Ultimate Meal Prep: This isn’t just one dinner; it’s the foundation for days of healthy lunches and quick meals.
One-Pan Wonder: Everything cooks together on a single sheet pan. That means incredible flavor and minimal cleanup.
Vibrant & Healthy: It’s a rainbow on a pan! Packed with lean protein and colorful bell peppers, it’s as nourishing as it is beautiful.
Better Than Takeout: The homemade fajita seasoning is so much more flavorful (and healthier!) than store-bought packets, without any weird additives.

Easy Sheet Pan Chicken Fajitas recipe (ingredients)

Key Ingredients for Perfect Sheet Pan Chicken Fajitas

Here’s the simple list of ingredients you’ll need. The real magic happens when they all roast together!

Chicken Breast: The lean protein powerhouse of our dish. Slicing it into uniform strips is a great habit to ensure everything cooks evenly.
Bell Peppers: I love using a “traffic light” mix of red, yellow, and green peppers for a full spectrum of color, flavor, and nutrients. They are incredibly rich in Vitamin C!
Onion: A red onion is my go-to for fajitas. It has a milder, slightly sweeter flavor when roasted and its deep purple color is gorgeous.
Olive Oil: This helps the spices cling to the chicken and veggies and encourages that delicious caramelization in the oven.
Homemade Fajita Seasoning: This is my secret weapon! A simple blend of chili powder, cumin, paprika, garlic powder, and onion powder creates a smoky, savory flavor that blows store-bought packets away.
Lime: A fresh squeeze of lime juice at the end is non-negotiable. It brightens up all the smoky flavors and makes the whole dish sing.

How to Make Sheet Pan Chicken Fajitas (Step-by-Step)

The beauty of this recipe is its simplicity. Here’s a quick overview of the process. The full, detailed recipe is in the recipe card at the bottom of this post!

Prep Your Ingredients: This is the most hands-on part. You’ll slice your chicken, bell peppers, and onion into similar-sized strips. As you see the vibrant colors pile up on your cutting board, you can already feel how healthy this is going to be!
Season Generously: Place everything on a large sheet pan. Drizzle with olive oil and sprinkle with your homemade fajita seasoning. Use your hands to toss everything together until every single piece is coated in that fragrant spice blend.
Roast to Perfection: Spread the mixture into a single, even layer. Pop it into a hot oven and let it roast. Your kitchen will start to smell absolutely amazing! You’re looking for the chicken to be cooked through and the edges of the vegetables to have a beautiful, slightly charred look.
Finish with a Flourish: Pull the pan from the oven and squeeze fresh lime juice all over the top. You’ll hear a gentle sizzle as the juice hits the hot pan. Garnish with fresh cilantro and it’s ready!

Easy Sheet Pan Chicken Fajitas recipe (processing)

Tips for Success: The “Good Habit” Way

Don’t Crowd the Pan: This is the #1 rule for sheet pan meals. Use a large sheet pan (or two smaller ones) to ensure the ingredients have space to roast, not steam. This is how you get those delicious caramelized edges.
High Heat is Your Friend: A hot oven (400°F / 200°C) is key. It cooks the fajitas quickly and helps achieve that signature char that is essential for authentic fajita flavor.
Uniform Cuts = Even Cooking: Take a few extra minutes to slice your chicken and vegetables into roughly the same size and thickness. This simple habit ensures everything finishes cooking at the same time.
The Finishing Squeeze: Don’t skip the final squeeze of lime! Acidity is a flavor enhancer. It cuts through the richness and brightens up the smoky spices, making the entire dish taste more vibrant and complete.

Meal Prep & Serving Ideas

This is where your Easy Sheet Pan Chicken Fajitas truly shine!

How to Meal Prep: Let the cooked fajita mixture cool completely. Store it in an airtight container in the fridge for up to 4 days. Store your tortillas, rice, and toppings separately.
Ways to Serve Throughout the Week:
- Classic Fajitas: Serve warm in corn or flour tortillas with your favorite toppings.
- Burrito Bowls: Serve over a bed of brown rice or quinoa. Add black beans, corn salsa, avocado, and a dollop of Greek yogurt.
- Fajita Salad: Pile the cooled or warmed mixture over a bed of crisp romaine lettuce. Add a simple lime vinaigrette.
- Stuffed Sweet Potatoes: A fantastic, extra-healthy option!

Frequently Asked Questions (FAQ)

Can I use a different protein?
Yes! This recipe works wonderfully with steak strips (flank or skirt steak) or peeled and deveined shrimp. If using shrimp, add them for the last 8-10 minutes of cooking time as they cook much faster.
Can I use a store-bought fajita seasoning packet?
You can in a pinch, but I highly encourage trying the homemade blend! It takes 2 minutes to mix together and you get to control the ingredients (especially salt and sugar).
How long will this last in the fridge?
Stored properly in an airtight container, the fajita mixture will stay delicious for 3-4 days, making it perfect for your weekly meal prep.
Can I freeze the cooked fajita mixture?
Yes, this is a great option for longer-term meal prep. Let the cooked Sheet Pan Chicken Fajitas cool completely, then store in a freezer-safe bag or container for up to 3 months. Thaw overnight in the fridge before reheating. The peppers will be a bit softer, but still delicious.

More One-Pan Dinners You’ll Love

The Best Healthy Tuscan Chicken (30-Minute Recipe)

Build Your Healthiest Habit

End the “what’s for dinner?” stress. Get my free guide with 5 Healthy Dinners in Under 30 Minutes, plus simple weekly recipes to help you feel good, consistently.

Easy Sheet Pan Chicken Fajitas Recipe

The best Easy Sheet Pan Chicken Fajitas! This one-pan recipe is perfect for healthy meal prep and busy weeknights.

Print Recipe Pin Recipe

Prep Time 15

Cook Time 20

Total Time 35

Servings 5

Calories 317 kcal

Equipment

Large Rimmed Baking Sheet
Sharp Knife
Small Bowl

Ingredients

1 tbsp chili powder
2 tsp ground cumin
1 tsp paprika sweet or smoked
1 tsp garlic powder
1 tsp onion powder
1/2 tsp dried oregano
1/2 tsp salt
1/4 tsp black pepper
1.5 lbs boneless skinless chicken breasts, sliced into 1/2-inch strips
3 bell peppers a mix of red, yellow, green, deseeded and sliced
1 large red onion sliced
3 tbsp olive oil
1 lime cut into wedges
Optional for serving: fresh cilantro tortillas, avocado, Greek yogurt

Instructions

Preheat & Prep: Preheat your oven to 400°F (200°C). In a small bowl, whisk together all the ingredients for the Fajita Seasoning: chili powder, cumin, paprika, garlic powder, onion powder, oregano, salt, and pepper.
Combine on Pan: On a large, rimmed baking sheet, combine the sliced chicken, bell peppers, and red onion. Drizzle with the olive oil.
Season Generously: Sprinkle the homemade fajita seasoning all over the chicken and vegetables on the pan. Use your hands or a pair of tongs to toss everything together until evenly coated.
Spread & Roast: Spread the mixture into a single, even layer on the baking sheet. Make sure not to overcrowd the pan (use two pans if necessary). Roast for 20-25 minutes, or until the chicken is cooked through and the vegetables are tender and slightly charred at the edges.
Finish & Serve: Remove the sheet pan from the oven. Immediately squeeze the juice of half a lime (about 2 wedges) all over the hot fajita mixture. Garnish with fresh cilantro and serve hot with your favorite tortillas and toppings.