Fish taco night usually means a long ingredient list and a sink full of dishes. These blackened shrimp tacos skip all of that. Shrimp get tossed in a smoky homemade blackening spice, seared hard in a screaming-hot skillet until charred at the edges, and tucked into warm tortillas with crunchy lime slaw and a cool lime crema. Twenty minutes, one skillet, and a plate that looks like it came from a taco truck.
Why you’ll love it
- 20 minutes, start to finish. The shrimp cook in about 4 minutes — the slaw and crema come together while the skillet heats.
- Big flavor, short ingredient list. One homemade spice blend does all the heavy lifting.
- ~26g protein per serving (estimated), from a generous pile of shrimp per taco.
- One skillet. Slaw and crema are no-cook; the only pan you wash is the one the shrimp seared in.
Ingredients
For the blackened shrimp
- 1 1/4 lb large shrimp, peeled and deveined, tails removed; thawed if frozen
- 1 tbsp olive oil
- 2 1/2 tbsp homemade blackening seasoning, see below
For the lime slaw
- 3 cups shredded green cabbage, about 1/4 medium head
- 1/4 cup chopped fresh cilantro
- 2 tbsp fresh lime juice, about 1 lime
- 1 tbsp olive oil
- 1/4 tsp kosher salt
For the lime crema
- 1/2 cup sour cream or plain Greek yogurt
- 2 tbsp fresh lime juice
- 1 tsp lime zest
- 1/4 tsp kosher salt
For serving
- 12 small corn or flour tortillas
- Lime wedges and extra cilantro, for serving
- Sliced avocado, optional
Homemade blackening seasoning
- 1 tbsp smoked paprika
- 2 tsp garlic powder
- 2 tsp onion powder
- 1 1/2 tsp dried thyme
- 1 tsp dried oregano
- 1 tsp kosher salt
- 3/4 tsp black pepper
- 1/2 tsp cayenne pepper
Equipment
A large cast-iron or heavy skillet, tongs, and two mixing bowls — one for the slaw, one for the crema.
Instructions
- Make the slaw. Toss the shredded cabbage, cilantro, lime juice, olive oil, and salt in a mixing bowl until evenly coated. Set aside — it softens slightly while you work, which is exactly what you want.
- Whisk the lime crema. In a second bowl, whisk the sour cream or Greek yogurt with the lime juice, lime zest, and salt until smooth. Cover and refrigerate until serving.
- Season the shrimp. Pat the shrimp very dry with paper towels — moisture is the enemy of a good char. Toss with the olive oil and blackening seasoning until every shrimp is evenly coated.
- Blacken the shrimp. Heat the dry skillet over medium-high until it just starts to smoke. Add the shrimp in a single layer (work in two batches if needed — crowding steams instead of sears). Cook 2 minutes per side, until charred in spots and pink and opaque throughout. Transfer to a plate.
- Char the tortillas. Wipe out the skillet, return to medium-high heat, and warm the tortillas 20–30 seconds per side until pliable with a few charred spots. Keep warm in a clean kitchen towel.
- Assemble and serve. Fill each tortilla with a handful of slaw and 3–4 shrimp. Drizzle generously with lime crema, shower with cilantro, and serve with lime wedges and avocado if you like.
Doneness cues: Shrimp are done when pink and opaque all the way through, curled into a loose C, and reading 145°F on an instant-read thermometer. A tight O means they went too far — pull them the moment the last gray spot disappears.
20-Minute Blackened Shrimp Tacos
Ingredients
Equipment
Method
- Toss the shredded cabbage, cilantro, lime juice, olive oil, and salt in a mixing bowl until evenly coated. Set aside — it softens slightly while you work, which is exactly what you want.
- In a second bowl, whisk the sour cream or Greek yogurt with the lime juice, lime zest, and salt until smooth. Cover and refrigerate until serving.
- Pat the shrimp very dry with paper towels — moisture is the enemy of a good char. Toss with the olive oil and blackening seasoning until every shrimp is evenly coated.
- Heat the dry skillet over medium-high until it just starts to smoke. Add the shrimp in a single layer (work in two batches if needed — crowding steams instead of sears). Cook 2 minutes per side, until charred in spots and pink and opaque throughout. Transfer to a plate.
- Wipe out the skillet, return to medium-high heat, and warm the tortillas 20–30 seconds per side until pliable with a few charred spots. Keep warm in a clean kitchen towel.
- Fill each tortilla with a handful of slaw and 3–4 shrimp. Drizzle generously with lime crema, shower with cilantro, and serve with lime wedges and avocado if you like.
Notes
Nutrition note
Protein is estimated at about 26g per serving, calculated from USDA FoodData Central values for the listed ingredients — this is an estimate, not a lab analysis. Actual values vary by brand and preparation.
Substitutions and tips
- Flour vs. corn tortillas: both work. Corn gives classic taqueria flavor; flour is sturdier and easier to char without cracking.
- Dial the heat: the cayenne in the seasoning is adjustable — halve it for mild, or add a diced jalapeño to the slaw for extra kick.
- Greek yogurt swap: plain Greek yogurt in the crema adds protein and tang; sour cream is richer. Either is good.
- Don’t skip patting dry. Wet shrimp steam in the pan and never develop that blackened crust.
- Frozen shrimp: thaw overnight in the fridge or under cold running water for 10 minutes, then drain and pat very dry.
Storage and reheating
Refrigerate leftover shrimp, slaw, and crema in separate airtight containers within 2 hours — shrimp up to 2 days, slaw and crema up to 3 days. Reheat shrimp gently in a skillet over medium heat for 1–2 minutes until just warmed through (165°F); the microwave makes them rubbery. Assemble tacos fresh — stored assembled tacos go soggy. Freezing is not recommended.
Frequently asked questions
Can I use frozen shrimp? Yes — thaw them first (overnight in the fridge, or 10 minutes under cold running water), then drain and pat very dry. Excess moisture prevents browning.
How spicy are these? Medium. The cayenne in the blackening seasoning brings warmth, but the cool slaw and lime crema balance it. Halve the cayenne for a mild version.
Can I make the slaw and crema ahead? Yes — both keep 3 days refrigerated in airtight containers. The slaw softens a bit more overnight, which most people prefer.
What if I don’t have a cast-iron skillet? Any heavy-bottomed skillet works. Get it very hot before adding the shrimp, and don’t crowd the pan — sear in two batches if needed.
Are corn or flour tortillas better? It’s personal. Corn tortillas taste more like a taqueria and char beautifully; flour tortillas are softer and less likely to crack. Warm either kind right before serving so they stay pliable.
More 20-minute dinners
More shrimp in a hurry: our 20-Minute Shrimp Scampi with Chickpea Pasta is another weeknight win. For another taco night, 30-Minute Turkey Taco Skillet feeds a crowd from one pan. Pantry-protein fans: 20-Minute Tuna Melt Quesadillas are ready just as fast.