Grilled Garlic-Lemon Shrimp Skewers with Zucchini and Onion

Why You’ll Love This Recipe

• Bright garlic–lemon flavor that complements sweet, juicy shrimp.
• Fast: 15-minute marinade and 8-minute cook time make it weeknight-friendly.
• Vegetable-forward: tender-crisp zucchini and sweet red onion char beautifully.
• Foolproof finish: melted butter and parsley add gloss, richness, and freshness.

Grocery List

• Produce: 2 medium zucchini, 1 large red onion, 1 lemon, 4 garlic cloves, fresh flat-leaf parsley
• Dairy: Unsalted butter
• Pantry: 1.5 lb large shrimp (21–25 count), extra-virgin olive oil, kosher salt, black pepper, red pepper flakes (optional), honey (optional), metal or wooden skewers

Full Ingredients

Garlic–Lemon Marinade

• 2 tbsp extra-virgin olive oil
• 1 tsp lemon zest (from 1 lemon)
• 3 tbsp fresh lemon juice
• 4 garlic cloves, finely minced
• 1 tsp kosher salt
• 1/2 tsp red pepper flakes (optional, for gentle heat)
• 1/4 tsp freshly ground black pepper
• 1 tsp honey (optional, balances acidity)

Skewers

• 1.5 lb large raw shrimp (21–25 count), peeled and deveined (tails on or off)
• 2 medium zucchini, trimmed and cut into 1/2-inch half-moons (or thick rounds if very narrow)
• 1 large red onion, cut into 1-inch pieces/petals
• 1 tbsp extra-virgin olive oil
• 1/2 tsp kosher salt
• 1/4 tsp freshly ground black pepper
• 8 metal skewers or 8 wooden skewers soaked 20–30 minutes

Finishing Butter & Garnish

• 3 tbsp unsalted butter, melted
• 2 tbsp finely chopped fresh flat-leaf parsley
• Lemon wedges, for serving

Optional to Serve

• Cooked rice, couscous, or warm flatbread
• Flaky sea salt, for finishing

Step-by-Step Instructions

Step 1: Soak skewers and preheat the grill

If using wooden skewers, soak them in water for 20–30 minutes so they don’t scorch. Meanwhile, preheat a gas grill to medium-high (425–450°F). If using a grill pan, preheat it over medium-high heat for 5 minutes and oil lightly just before cooking.

Step 2: Mix the garlic–lemon marinade

In a large bowl, whisk together 2 tbsp olive oil, lemon zest, 3 tbsp lemon juice, minced garlic, kosher salt, black pepper, red pepper flakes (if using), and honey until emulsified and fragrant.

Step 3: Marinate the shrimp

Pat the shrimp dry with paper towels. Add them to the bowl and toss to coat thoroughly. Marinate for 15 minutes in the refrigerator. This short, bright marinade seasons the shrimp without making them mushy.

Step 4: Season the vegetables and thread the skewers

In a separate bowl, toss zucchini and red onion with 1 tbsp olive oil, 1/2 tsp kosher salt, and 1/4 tsp pepper. Thread skewers alternating red onion, zucchini, shrimp, zucchini, red onion, repeating to fill (4–5 shrimp per skewer). Pierce each shrimp through the thick end and again through the tail to secure it in a “C” shape for even cooking.

Step 5: Grill to juicy perfection

Clean and oil the grill grates. Place skewers over direct heat. Grill for 3–4 minutes per side (about 6–8 minutes total), turning once, until the shrimp are just opaque with light char and the vegetables are tender-crisp. If using a thermometer, aim for 120–125°F in the thickest part of a shrimp.

Step 6: Brush with lemon–parsley butter

While the skewers cook, melt the butter. Off the heat, stir in the chopped parsley. As soon as the skewers come off the grill, brush generously with the melted butter and parsley mixture. Squeeze a little fresh lemon over the top to brighten.

Step 7: Rest briefly and serve

Let the skewers rest for 2 minutes to reabsorb juices. Transfer to a warm platter, finish with a pinch of flaky sea salt if you like, and serve with lemon wedges. Pair with rice, couscous, or crusty bread to catch the buttery juices.

Pro Tips

• Dry the shrimp well before marinating so the flavors adhere and you get better sear.
• Thread shrimp through two points (head end and tail) to prevent spinning and ensure even grilling.
• Don’t over-marinate: 15 minutes is ideal for shrimp; longer can affect texture.
• Create a two-zone fire (one hotter, one cooler) so you can move skewers if flare-ups occur.
• Pull the shrimp as soon as they turn opaque with light char; carryover heat will finish them.

Variations

• Mediterranean: Add 1 tsp dried oregano to the marinade and finish with crumbled feta and extra lemon.
• Spicy Harissa: Replace red pepper flakes with 1–2 tsp harissa paste and add a pinch of cumin.
• Cajun: Swap in 1 tbsp Cajun seasoning for the marinade’s salt/pepper and finish with scallions.

Storage & Make-Ahead

Marinate shrimp up to 30 minutes ahead (refrigerated). Vegetables can be cut and refrigerated up to 24 hours in advance. Thread skewers up to 6 hours ahead and keep covered and chilled. Cooked skewers are best fresh; if needed, refrigerate up to 2 days in an airtight container and rewarm gently under the broiler for 1–2 minutes or in a hot skillet with a touch of butter. Avoid microwaving too long to prevent overcooking.

Nutrition (per serving)

Approximate: 350 calories; 34 g protein; 18 g fat; 8 g carbohydrates; 1 g fiber; 2 g sugars; 970 mg sodium.