There’s something irresistible about steak tacos hot off the grill, especially when they’re loaded with flavor and wrapped in warm tortillas. These grilled onion skirt steak tacos are here to upgrade your next taco night with smoky charred onions, beer-marinated steak, and all the zesty, juicy goodness you crave.

If you’ve ever needed a go-to skirt steak recipe for outdoor cooking or a flavorful twist on a weeknight dinner, this one’s a game-changer. It’s fuss-free, full of bold ingredients, and perfect for feeding a crowd—or just a really hungry family.

Why You’ll Love These Grilled Onion Skirt Steak Tacos

Quick-cooking, tender skirt steak that’s full of flavor
Smoky, caramelized onions that add natural sweetness
Simple marinade that packs a punch
The ultimate taco night crowd-pleaser

Ingredients You’ll Need

2 beef skirt or flank steaks (450 g each)
355 ml of beer
60 ml lime juice
45 ml olive oil, divided
8 spring onions or green onions
6 g salt, divided
1.5 g black pepper, divided
Corn tortillas (about 8–10)
Fresh cilantro, minced
Lime wedges for serving

How to Make These Flavor-Packed Steak Tacos

Marinate the Steak
Place steaks in a large resealable bag or shallow dish. Pour in beer and lime juice. Cover and refrigerate for at least 2 hours, or overnight for a deeper flavor.
Prep the Grill
Heat your grill to medium-high. Remove steaks from the marinade, pat them dry, and drizzle with 1 tbsp olive oil. Season with 5 g salt and 1 g pepper.
Season the Onions
Toss spring onions with the remaining 30 ml olive oil, 1 g salt, and 0.5 g pepper.
Grill the Steak
Cook steaks for 2–3 minutes per side for medium-rare. Let rest for 5 minutes, then slice thinly against the grain.
Grill the Onions
Grill spring onions for 5–6 minutes, turning occasionally, until they’re charred and tender.
Warm the Tortillas
Heat tortillas on the grill for about 30 seconds per side, until soft and slightly charred.
Assemble and Serve
Load tortillas with sliced steak, charred onions, fresh cilantro, and a squeeze of lime juice.

Taco Night Tips You’ll Want to Remember

Marinate overnight for deeper flavor and more tender meat.
Pat the steak dry before grilling to get that beautiful sear.
Cut against the grain for the juiciest, most tender bites.
Double the onions. Trust me, they’ll disappear fast!

A Little Taco Backstory

These grilled onion skirt steak tacos came to life during a family weekend cookout. We’d run out of typical toppings, but had beer, onions, and a big pack of skirt steak. After some quick grilling and a lot of fingers sneaking bites off the cutting board, we realized we were onto something.

Now, it’s our staple for taco night. We fire up the grill, toss the steak on, and let the smoky aroma lure everyone to the table. There’s always laughter, messy hands, and zero leftovers.

What to Serve With These Tacos

Mexican street corn: Sweet, creamy, and cheesy.
Avocado or guacamole: A Creamy balance to the smoky steak.
Spicy black beans: Add heat and protein.
Fresh salsa or pico de gallo: Brightens up each bite.

How to Store Leftovers

Refrigerate: Keep steak and onions in separate containers for up to 3 days.
Reheat: Warm gently on a skillet or in the microwave. Add a splash of water if needed.
Tortillas: Store in a sealed bag at room temperature for a day or two, or in the fridge for longer.

FAQs

Can I use flank steak instead of skirt?

Absolutely. Flank steak works great—just slice thinly against the grain.

Can I grill indoors?

Yes! Use a cast-iron grill pan for great sear and flavor.

Is this a good make-ahead recipe?

Yes—marinate the steak the night before and prep toppings in advance.

What’s the best beer to use?

A light lager or pale ale complements the lime and steak beautifully.

Let’s Make Taco Night Legendary

Grilled onion skirt steak tacos aren’t just a recipe—they’re a moment. Whether it’s Tuesday or a special occasion, this skirt steak recipe brings the flavor, fun, and fiesta to your dinner table. Fire up that grill and make your next taco night unforgettable.

Grilled Onion & Skirt Steak Tacos: Your New Taco Night Hero

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Author: Amanda Thompson
Total Time: 25 minutes active
Yield: 4–5 servings 1x

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Description

These grilled onion skirt steak tacos are packed with juicy, beer-marinated skirt steak and smoky, charred green onions, all wrapped in warm corn tortillas. It’s the ultimate taco night recipe that’s fast, flavorful, and guaranteed to wow a crowd—perfect for cookouts or weeknight dinners.

Ingredients

Scale

2 beef skirt or flank steaks (450 g each)
355 ml beer
60 ml lime juice
45 ml olive oil, divided
8 spring onions or green onions
6 g salt, divided
1.5 g black pepper, divided
Corn tortillas (8–10)
Fresh cilantro, minced
Lime wedges, for serving

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Instructions

Place steaks in a resealable bag or dish and pour in beer and lime juice. Marinate in the fridge for at least 2 hours or overnight.
Preheat grill to medium-high heat. Remove steaks from marinade, pat dry, and drizzle with 1 tbsp olive oil. Season with 5 g salt and 1 g pepper.
Toss spring onions with remaining olive oil, 1 g salt, and 0.5 g pepper.
Grill steaks for 2–3 minutes per side for medium-rare. Rest 5 minutes, then slice thinly against the grain.
Grill onions for 5–6 minutes until charred and tender.
Warm tortillas on the grill for 30 seconds per side.
Assemble tacos with sliced steak, grilled onions, cilantro, and lime juice.

Notes

Marinate steak overnight for maximum flavor.

Pat dry before grilling for a good sear.

Cut steak against the grain for tenderness.

Make extra onions—they go fast!

Prep Time: 10 minutes
Cook Time: 15 minutes
Category: Main Course
Method: Grilling
Cuisine: Mexican-Inspired, American