Few dinners deliver maximum culinary satisfaction with so little effort as this Sheet Pan Fajita Chicken with Cilantro Butter. In just 25 minutes, tender strips of spiced chicken breast, a vibrant trio of sweet bell peppers, and caramelized red onions roast to charred perfection on a single baking sheetu2014then get crowned with a glossy, sizzling drizzle of melted cilantro lime garlic butter that takes every bite straight into restaurant-quality territory.

Weeknight cooking is all about smart flavor layering. Instead of standing over a smoking skillet in batches, roasting your chicken and peppers at high heat (425u00b0F / 220u00b0C) allows the natural sugars in the bell peppers and onions to caramelize while sealing in juicy moisture throughout the chicken. The finishing touchu2014a 60-second compound cilantro garlic butter poured over the blistering hot panu2014creates an instant aromatic emulsion that coats every tender morsel with smoky citrus brightness.
Why Youu2019ll Love This Recipe
- 25-Minute Total Time: From cutting board to table in under half an hour, making this the undisputed champion of busy weeknight dinners.
- Effortless Single-Pan Cleanup: Line your rimmed baking sheet with parchment paper or foil, and you have virtually zero dishes to wash afterward.
- High-Protein & Nutrient-Dense: Packing an impressive 38 grams of lean protein per serving alongside over 140% of your daily Vitamin C from fresh sweet peppers.
- 100% Halal Wholesome & Natural: Crafted from scratch with wholesome pantry spices, fresh citrus, and zero artificial flavorings, preservatives, or alcohol deglazing.
Key Ingredients & Smart Swaps

- Boneless Skinless Chicken Breasts: Cut across the grain into uniform 1/2-inch strips to guarantee tender, succulent bites. Smart Swap: Boneless chicken thighs work exceptionally well and offer even richer juiciness.
- Trio of Sweet Bell Peppers: A colorful medley of red, yellow, and green peppers provides balancing sweetness and festive texture. Pro Hack: Slice them slightly thicker than the chicken (around 1/4-inch to 1/2-inch) so they maintain a tender-crisp bite.
- Red Onion: Delivers sweet caramelized savoriness when roasted under high heat. Yellow or sweet Vidalia onions can be substituted seamlessly.
- Bespoke Fajita Spice Blend: A balanced ratio of chili powder, earthy ground cumin, smoked paprika, garlic powder, onion powder, sea salt, and black pepper. Skip the salty store-bought packetsu2014this fresh blend yields authentic Mexican flavor without excess sodium or fillers.
- Cilantro Lime Garlic Butter: The secret weapon that elevates ordinary fajitas into restaurant-worthy cuisine. The warm butter mingles with the roasting pan juices to form a rich, velvety pan sauce.
Step-by-Step Cooking Walkthrough
1. Oven & Pan Setup: Preheat your oven to 425u00b0F (220u00b0C) with the rack placed in the upper third. Line an 18×13-inch rimmed half-sheet pan with parchment paper or heavy-duty aluminum foil. High heat is essential to achieve roasting char rather than steaming.
2. Season & Spread Evenly: Place the sliced chicken, peppers, and onions directly onto the prepared pan. Drizzle with 2 tablespoons of extra-virgin olive oil and scatter the homemade fajita spice blend evenly across the ingredients. Using your hands or tongs, toss thoroughly until every strip is coated in spices and oil, then spread into a single, uncrowded layer.

3. High-Heat Roast & Broil: Roast for 18 to 20 minutes until the chicken reaches an internal temperature of 165u00b0F. Switch the broiler to HIGH for the final 2 minutes to create sensational charred edges on the peppers and chicken strips.
4. Cilantro Butter Sizzle: Whisk melted butter with grated garlic, minced fresh cilantro, and lime juice. As the baking sheet emerges piping hot from the oven, pour the warm butter mixture directly over the chicken and peppers. Toss once gently to glaze every piece, and bring the sheet pan straight to the table.
3 Chef Secrets for Sizzling Fajita Perfection
1. Avoid the Crowded Pan Trap: If your chicken and vegetables are piled on top of each other, trapped moisture will cause them to steam instead of roast. Use a standard 18×13 half-sheet pan. If doubling the recipe, split the ingredients between two separate baking sheets.
2. Cut Against the Grain: Always slice raw chicken breasts across the muscle grain into 1/2-inch strips. This shortens the muscle fibers, resulting in melt-in-your-mouth tenderness that never feels chewy.
3. The Hot-Pan Butter Emulsion: Pouring the garlic cilantro butter onto the pan while it is still sizzling hot allows the melted butter to blend with the seasoned chicken drippings, creating a restaurant-style pan glaze that locks in succulent moisture.
What to Serve With Sheet Pan Fajita Chicken

- Warm Tortillas & Grains: Serve alongside warm charred corn tortillas, flour tortillas, or a fluffy bowl of our homemade Cilantro Lime Rice to soak up all the zesty pan drippings.
- Fresh Toppings & Dips: Set out bowls of creamy guacamole, fresh pico de gallo, sour cream or Greek yogurt, and pickled red onions for an interactive DIY taco night.
- Weeknight Meal Pairing: If you adore rapid, 25-minute skillet and sheet pan dinners, you will also fall in love with our reader-favorite Creamy Garlic Pesto Chicken and Gnocchi Skillet for another foolproof weeknight triumph!
Storage, Freezing & Reheating Instructions
- Refrigeration: Cool leftover fajita chicken and peppers completely, then store in an airtight container in the refrigerator for up to 4 days. It makes incredible grab-and-go meal prep bowls!
- Gentle Reheating: Reheat in a dry skillet over medium-high heat for 3 to 4 minutes until warm and re-crisped on the edges. Alternatively, warm on a baking sheet in a 350u00b0F (175u00b0C) oven for 7 to 8 minutes.
- Freezing: Cooked fajita chicken and peppers can be frozen in a freezer-safe silicone bag for up to 3 months. Thaw overnight in the refrigerator before reheating.
Sheet Pan Fajita Chicken with Cilantro Butter
Ingredients
- 1.5 lbs boneless skinless chicken breasts sliced into 1/2-inch thin strips
- 1 large red bell pepper cored and cut into 1/4-inch strips
- 1 large yellow bell pepper cored and cut into 1/4-inch strips
- 1 large green bell pepper cored and cut into 1/4-inch strips
- 1 medium red onion halved and thinly sliced into half-moons
- 2 tbsp extra-virgin olive oil for coating sheet pan ingredients
- 1 tbsp chili powder mild Mexican or ancho style
- 1.5 tsp ground cumin earthy and freshly ground
- 1 tsp smoked paprika for deep rustic campfire char flavor
- 1 tsp garlic powder granulated or fine powder
- 1/2 tsp onion powder savory aromatic foundation
- 1 tsp fine sea salt or kosher salt to taste
- 1/2 tsp freshly cracked black pepper coarsely ground
- 3 tbsp unsalted butter melted warm
- 2 cloves fresh garlic finely grated or minced
- 1/4 cup fresh cilantro leaves finely chopped
- 1 tbsp fresh lime juice plus extra wedges for serving
Method
- Preheat your oven to 425°F (220°C). Position a rack in the upper third of the oven. Line a large heavy-rimmed baking sheet (18×13 half-sheet pan) with parchment paper or heavy-duty foil lightly misted with olive oil for effortless cleanup.
- In a small bowl, whisk together the chili powder, ground cumin, smoked paprika, garlic powder, onion powder, sea salt, and black pepper until completely blended.
- Slice the chicken breasts across the grain into 1/2-inch strips. Core and slice the red, yellow, and green bell peppers and red onion into uniform strips. Place chicken and vegetables directly onto the prepared sheet pan.
- Drizzle with 2 tablespoons of extra-virgin olive oil and scatter the homemade fajita seasoning evenly over everything. Using tongs or clean hands, toss thoroughly until every strip is coated in spices and oil. Spread everything into a single, uncrowded layer across the pan.
- Roast at 425°F for 18 to 20 minutes until the chicken is tender and cooked through to 165°F. For sensational blistered edges, switch your oven broiler to HIGH for the final 2 to 3 minutes, watching closely until the chicken develops golden-charred tips and peppers are blistered.
- While the pan roasts, melt butter in a small ramekin and stir in grated garlic, chopped fresh cilantro, and lime juice. As soon as the sheet pan emerges sizzling from the oven, immediately drizzle this warm cilantro butter all over the chicken and peppers. Toss gently to coat and serve immediately with warm tortillas!
Nutrition
Notes
Tried this recipe?
Let us know how it was!Frequently Asked Questions
Can I use chicken thighs instead of breasts?
Yes, absolutely! Boneless skinless chicken thighs roast up exceptionally juicy and flavorful. Slice them into similar 1/2-inch strips and roast following the exact same timing.
How do I get charred edges without overcooking the chicken?
Roast at a high temperature (425u00b0F / 220u00b0C) on the upper oven rack, then switch the broiler to HIGH for the final 2 minutes. The intense radiant overhead heat blisteringly chars the peppers and chicken surfaces in seconds while preserving internal juiciness.
Can I meal prep this ahead of time?
Definitely. You can slice the chicken, peppers, and onions up to 24 hours in advance and store them tossed in the olive oil and fajita spices in a sealed container in the fridge. When ready to eat, simply spread onto your sheet pan and roast!
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