Why It Works

• High-heat roasting: Baking at 425°F (220°C) prevents the chicken and vegetables from steaming in their own juices, encouraging better browning and a texture closer to traditional stovetop fajitas.
• The acidic finish: Because the dish relies on a salt-free spice blend, adding fresh lime juice right at the end brightens the flavors and tricks the palate into not missing the sodium.
• Smoked paprika: Swapping standard sweet paprika for the smoked variety adds a layer of depth that mimics the char of a restaurant grill.

Common Pitfalls to Avoid

• Overcrowding the pan: If the baking sheet is too small, the ingredients will overlap and steam rather than roast. If necessary, divide the mixture between two sheet pans.
• Uneven slicing: Cutting the chicken strips or vegetables into varying thicknesses will lead to uneven cooking times. Aim for uniform 1/2-inch strips.
• Skipping the lime: Without salt to amplify the spices, the dish relies heavily on the acidity of the lime juice to bring the flavors together. Don’t leave it out.

Variations

• Spicy Kick: Add 1/4 to 1/2 teaspoon of cayenne pepper or crushed red pepper flakes to the dry seasoning mix before tossing it with the chicken.
• Steak Fajitas: Swap the chicken breasts for 1 1/2 pounds of sliced flank or skirt steak. Keep the cooking temperature the same, but check for doneness around the 12-minute mark to prevent the beef from drying out.