Sheet Pan Shrimp Fajitas
These Sheet Pan Shrimp Fajitas are juicy, smoky, and loaded with colorful peppers, all roasted together in under 30 minutes for a healthy, low-carb weeknight dinner the whole family will love.
The Easiest Weeknight Dinner You Are Not Making Yet
Imagine smoky, juicy shrimp with blistered peppers and sweet caramelized onions, all ready in under 30 minutes with barely any cleanup. That is exactly what these Sheet Pan Shrimp Fajitas deliver every single time. One pan, one oven, and dinner is on the table before anyone can complain about being hungry.
Whether you are looking for keto shrimp fajitas, a lighter take on low-carb shrimp fajitas, or just a faster way to get a restaurant-quality meal on a Tuesday night, this recipe checks every box. It is naturally gluten-free in the filling, big on flavor, and the kind of thing that goes onto your permanent rotation after the very first bite.
Getting the perfect roast on shrimp and peppers really does come down to having the right pan and a good spice blend. A heavy-gauge, rimmed sheet pan gives you even heat and proper browning rather than steaming, and a bold fajita seasoning made from scratch beats any store-bought packet. Using the right tools here genuinely makes the difference between good fajitas and great ones.
Why This Recipe Works So Well
Sheet pan dinners have become a staple for good reason: they are efficient, flavorful, and nearly impossible to mess up. This version is specifically built around how shrimp actually cook, which is fast and hot.
Here is what makes this recipe stand out:
- High heat roasting at 425 degrees F gets the peppers and onions slightly charred and sweet without turning them to mush.
- Staging the cook by adding the shrimp halfway through means nothing is overcooked. The peppers get a head start, and the shrimp go in at the end for a short, perfect roast.
- A homemade spice blend of chili powder, smoked paprika, cumin, garlic powder, and onion powder hits every fajita flavor note without excess sodium, making this a natural fit for low-sodium shrimp fajitas as well.
- One pan means one cleanup. No separate skillet, no grill grates to scrub.
Chef's Tip: Pat your shrimp completely dry before seasoning them. Moisture on the surface causes steaming instead of roasting, and you will lose that gorgeous caramelized crust. This single step makes a bigger difference than most people realize.
Keto, Low-Carb, and Zero Point Friendly
One of the best things about this recipe is how easily it adapts to different dietary needs. The shrimp and vegetable filling is already naturally low-carb and keto, containing almost no sugar and very few net carbs from the peppers and onion.
To keep it keto shrimp fajitas or zero-point sheet pan shrimp fajitas, simply swap the tortillas for:
- Butter lettuce cups for a fresh, crunchy wrap
- Cauliflower rice as a hearty base
- Sliced avocado on the side for healthy fat
- Jicama tortillas for a low-carb crunch that actually holds up
If you are tracking sodium, this recipe is already thoughtfully seasoned. You can reduce the salt further and lean on the lime juice and smoked paprika to carry the flavor, both of which are naturally sodium-free.
Tips for Perfect Sheet Pan Baked Shrimp Fajitas
A few simple habits separate good sheet pan fajitas from genuinely great ones.
Use a large pan and do not crowd it. Overcrowding traps steam and prevents browning. If you are feeding a crowd, use two pans side by side rather than piling everything onto one.
Slice peppers and onions thin and even. About a quarter-inch thickness gives you tender, lightly charred strips that cook evenly in the time it takes the shrimp to finish.
Watch the shrimp closely. They go from perfect to overdone in about 90 seconds. As soon as they turn pink and opaque with a slight curl, pull the pan. Carry-over heat will finish the job.
Finish with fresh lime juice on the hot pan. That hit of acid right out of the oven brightens every single flavor in the dish and ties everything together in a way that no spice can replicate.
Chef's Tip: If you want a little char on the shrimp that rivals a restaurant grill, switch your oven to the broiler setting for the final 2 minutes of cooking. Keep a close eye on it, but the color you get is absolutely worth it.
What to Serve with Sheet Pan Shrimp Fajitas
These fajitas are a complete meal on their own, but a few simple sides take the whole spread to the next level:
- Fresh pico de gallo or a good jarred salsa
- Guacamole or sliced avocado for healthy creaminess
- Mexican-style cauliflower rice to keep it low-carb
- Cilantro lime rice for a more traditional pairing
- Refried or black beans for extra protein and fiber
For toppings, think sour cream or plain Greek yogurt, shredded cheese, pickled jalapeños, and plenty of lime wedges on the side.
Ready to make it? Here is the full step-by-step recipe:
Sheet Pan Shrimp Fajitas
These Sheet Pan Shrimp Fajitas are juicy, smoky, and loaded with colorful peppers, all roasted together in under 30 minutes for a healthy, low-carb weeknight dinner the whole family will love.
Ingredients
- 1 1/2 lb large shrimp, peeled and deveined, tails on or off
- 1 red bell pepper, thinly sliced
- 1 yellow bell pepper, thinly sliced
- 1 green bell pepper, thinly sliced
- 1 yellow onion, thinly sliced into half-moons
- 3 tbsp olive oil, extra virgin
- 1 1/2 tsp chili powder
- 1 tsp ground cumin
- 1 tsp smoked paprika
- 1/2 tsp garlic powder
- 1/2 tsp onion powder
- 1/2 tsp kosher salt
- 1/4 tsp black pepper, freshly cracked
- 1 lime, juiced, plus extra wedges for serving
- 1/4 cup fresh cilantro, roughly chopped, for garnish
- 8 flour or corn tortillas, warmed, for serving (omit for keto or low-carb)
Instruction
Preheat your oven to 425 degrees F (220 degrees C) and line a large rimmed sheet pan with foil or parchment paper. For the best char, use a dark-colored or heavy-gauge sheet pan.
In a small bowl, whisk together the chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, and black pepper to create the fajita spice blend.
Spread the sliced bell peppers and onion across the sheet pan. Drizzle with 2 tablespoons of olive oil and sprinkle with half of the spice blend. Toss everything directly on the pan until evenly coated.
Roast the peppers and onions for 10 minutes, until they begin to soften and get a little color on the edges.
While the vegetables roast, pat the shrimp completely dry with paper towels. Add them to a bowl, drizzle with the remaining 1 tablespoon of olive oil, and toss with the remaining spice blend.
Remove the pan from the oven. Push the peppers and onions to the edges of the pan and arrange the seasoned shrimp in a single layer in the center.
Return the pan to the oven and roast for 6 to 8 more minutes, just until the shrimp are pink, opaque, and cooked through. Do not overcook.
Squeeze fresh lime juice over the entire pan. Taste and adjust seasoning if needed.
Serve immediately in warm tortillas (or lettuce cups for a low-carb option), topped with fresh cilantro and any desired toppings like avocado, sour cream, or salsa.
Equipment
- Large rimmed sheet pan (18x13 inch)
- Foil or parchment paper
- Small mixing bowl
- Large mixing bowl
- Tongs
- Paper towels
Notes
Storing and Reheating Leftovers
If you have leftovers, store the shrimp and vegetable filling separately from the tortillas in an airtight container in the refrigerator for up to 3 days.
For reheating, a hot skillet over medium heat for 2 to 3 minutes is far better than the microwave. A small splash of lime juice or water in the pan keeps things from drying out and wakes the flavors back up beautifully. Avoid overheating the shrimp since they can turn rubbery quickly.
This filling also works wonderfully the next day as a shrimp fajita bowl over rice or greens, making your meal prep do double duty without any extra effort.
