Sheet Pan Fajita Veggies
Colorful bell peppers and onions roasted on a single sheet pan until tender with charred edges, tossed in a smoky, zesty fajita seasoning. This hands-off method delivers all the flavor of sizzling restaurant fajitas with barely any cleanup. Perfect for stuffing into tacos, burritos, or serving over rice.
For 4 servings
- prep
Preheat the oven and prep the vegetables.
1.Preheat the oven to 425°F (220°C).2.Slice 3 bell peppers into 1/2-inch strips.3.Halve 2 onions and slice into 1/2-inch strips. - mix
Toss the vegetables with oil and fajita seasoning.
1.In a large bowl, combine sliced bell peppers and onions with 2 tbsp oil.2.Sprinkle 1 tsp chili powder, 1 tsp cumin powder, 1 tsp smoked paprika, 1 pinch garlic powder, 0.5 tsp salt, and a pinch of black pepper.3.Toss well until every piece is evenly coated. - roast · ~20 min
Roast until tender and charred at the edges.
1.Spread the seasoned vegetables in a single layer on a large sheet pan.2.Roast for 10 minutes, then stir and spread out again.3.Continue roasting another 8-10 minutes until edges are charred and vegetables are tender.TIPDon't overcrowd the pan — if the vegetables overlap they'll steam instead of roast. Use two pans if needed. - assemble
Finish with fresh lime juice and serve immediately.
1.Remove the pan from the oven.2.Drizzle 1 tbsp fresh lime juice over the hot vegetables and toss gently.TIPAdding lime juice while the vegetables are hot helps it absorb into every piece, brightening the smoky seasoning.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Cut bell peppers and onions into uniform 1/2-inch strips for even roasting.
- 2For deeper char, place the sheet pan on the top oven rack during the last 5 minutes.
- 3Let the hot sheet pan sit for 1 minute after roasting to develop extra caramelization on the veggie edges.
- 4Make ahead: roast the veggies, cool completely, and refrigerate in an airtight container for up to 3 days.
- 5To reheat and revive char, spread on a sheet pan in a 400°F oven for 5 minutes.
- 6Line the sheet pan with parchment paper for the easiest cleanup possible.
Adapt it for your goals.
High-heat-protein
Add sliced boneless chicken thighs or flank steak to the same pan after 5 minutes of vegetable roasting — the meat picks up the smoky seasoning and browns alongside the veggies for a complete one-pan meal.
low oilLow-oil
Use a spray bottle to lightly mist the veggies with oil (reducing to about 1 tablespoon) and toss with seasoning — the high heat still chars beautifully while cutting fat by nearly half.
extra smokyExtra-smoky
Swap smoked paprika for chipotle powder (start with ½ teaspoon) and add ¼ teaspoon of liquid smoke to the oil for a deeper, almost campfire-like char flavor.
vegan taco fillingVegan-taco-filling
Toss in 1 cup of drained black beans and ½ cup of corn kernels during the last stir (minute 10) — they warm through and get light char marks, making the veggies a hearty taco filling.
jain friendlyJain-friendly
Omit the garlic powder and onion (use asafoetida/hing a pinch for aroma), and add sliced zucchini or baby corn to maintain volume while respecting Jain dietary restrictions.
Why this is on our healthy list.
Rich in Vitamin C
Bell peppers, especially red ones, are packed with vitamin C, and roasting helps concentrate this antioxidant for immune support.
Low-Calorie Nutrient Density
This dish is mostly vegetables with minimal oil, making it a high-volume, low-calorie way to fill up on fiber and essential micronutrients.
Anti-Inflammatory Spices
Cumin and smoked paprika contain antioxidant compounds that may help reduce inflammation in the body.
Frequently asked questions
Most likely the pan was overcrowded — vegetables must be in a single layer without touching. Use two sheet pans or a larger one to let steam escape.
