This recipe for mixed seafood kabobs has been one of those summer mainstays that always draws a small crowd to the grill. I first put these together on a sun-soaked weekend when friends were stopping by unexpectedly and I wanted something quick, elegant, and light that still felt special. Using shrimp, sea scallops and a firm white fish such as halibut, each skewer becomes a balanced bite: buttery scallops, sweet shrimp, and the firm, meaty texture of halibut. No complicated marinade is required—just a bright hit of lemon, good extra-virgin olive oil and dried herbs to let the natural flavors shine.

I remember the afternoon I discovered this combination: I was cleaning out the fridge and found a sad little bag of scallops that needed saving, a piece of halibut, and leftover shrimp. I threaded them on skewers with cherry tomatoes, mushrooms and pearl onions, drizzled with olive oil and lemon, and in less than twenty minutes the grill had turned those humble components into something celebratory. The contrast between the caramelized grill marks and the tender interiors always makes guests linger for seconds, and the recipe is forgiving enough for cooks at any level.

Ingredients

• Cherry tomatoes (24): Look for firm, ripe tomatoes—Brands don’t matter much here; choose small, sweet varieties for the best burst of acidity on the skewer.
• Mushrooms (12): Use whole button or cremini mushrooms; they hold up to grilling and add an earthy counterpoint to the seafood.
• Pearl onions (12): These add mild sweetness—if you buy frozen, thaw first; if fresh, blanch or microwave 1 minute to slightly soften.
• Halibut or other firm fish (1 lb): Buy fresh, sushi-grade if possible, or high-quality frozen—cut into 1-inch cubes for even cooking; halibut gives a clean, firm texture.
• Sea scallops (about 1 lb, 24 scallops): Choose dry-packed scallops (not treated with phosphates) for best sear and flavor; remove the side muscle before cooking.
• Large raw shrimp (about 1 lb, 24): Use large, peeled and deveined shrimp; leave tails on or off to your preference—they cook very quickly.
• Extra-virgin olive oil (2–3 Tbsp): A good fruity olive oil brightens without overpowering the seafood.
• Large lemon (1): Zest and juice for bright acidity; fresh lemon is essential—bottled won’t provide the same lift.
• Dried minced onion (1 Tbsp) and dried tarragon or oregano (1 Tbsp): These dried herbs add savory depth and are shelf-stable for quick seasoning.
• Salt and pepper: Use kosher salt and freshly cracked black pepper—season generously to bring out the seafood’s natural sweetness.

Instructions

Soak the skewers: An hour before assembling, immerse 24–26 bamboo skewers in water to prevent burning. Use a deep container and place a heavy plate on top if needed to keep them submerged. Soaking for at least 60 minutes is the best insurance against char. Prep the produce and seafood: Microwave pearl onions on high for 1 minute if they’re fresh to slightly soften (skip if they were previously frozen). Rinse and dry tomatoes and mushrooms. Cut halibut into roughly 1-inch cubes so pieces cook uniformly. Remove the small side muscle from scallops and peel/devein the shrimp if necessary. Pat everything completely dry with paper towels—moisture prevents a good sear. Assemble the kabobs: Use two skewers per kabob to stabilize the pieces and make flipping easier. Thread in this order: 1 shrimp, 1 pearl onion, 1 scallop, 1 cherry tomato, 1 halibut piece, 1 mushroom, 1 halibut piece, 1 cherry tomato, 1 scallop, 1 shrimp. You can vary order as you like; the goal is even spacing so heat circulates. Season and dress: Lay skewers on a baking sheet or large platter. Drizzle with 2–3 tablespoons extra-virgin olive oil and the juice of the lemon (reserve a few wedges). Sprinkle with 1 tablespoon dried minced onion and 1 tablespoon dried tarragon or oregano. Generously salt and pepper both sides—about 1/2 teaspoon kosher salt per side total for all skewers is a good starting point. Grill: Preheat grill to medium-high (about 375–425°F). Clean and oil the grates. Grill kabobs about 4–6 minutes per side, depending on grill heat and thickness—watch closely: shrimp turn pink and opaque, scallops will be firm with a slight spring, halibut should flake but remain moist. Rotate once for even char. Total cook time is usually 8–12 minutes. Finish and serve: Remove skewers, transfer to a warmed platter, garnish with chopped parsley if desired and serve immediately with lemon wedges. Seafood is best enjoyed hot off the grill for the best texture.

Storage Tips

Cool any leftover skewers quickly and store in a shallow airtight container in the refrigerator for up to 48 hours. Reheat gently—either back on the grill over low heat or in a 300°F oven for 8–10 minutes—just until warmed through; rapid reheating will toughen scallops and shrimp. If freezing pre-grill, assemble on skewers as instructed and flash-freeze on a tray for 1–2 hours before transferring to vacuum bags; freeze up to 3 months. Label with date and thaw in the fridge overnight before grilling.

Ingredient Substitutions

Swap halibut for other firm fish such as cod, swordfish or mahi-mahi; reduce cooking time slightly for thinner fillets. If scallops are unavailable, thick chunks of monkfish or extra-firm tofu (for a pescatarian-free option, although this changes flavor drastically) can be used. Try fresh oregano if you prefer a greener herb note, or replace dried herbs with a tablespoon of chopped fresh tarragon or parsley just before serving. For a smoky variation, brush a teaspoon of smoked paprika into the oil.

Serving Suggestions

Serve these skewers with a simple chilled grain salad (quinoa or farro), baby greens tossed in lemon vinaigrette, or grilled corn and new potatoes. Garnish with chopped parsley and extra lemon wedges. For a party, arrange skewers on a large platter over a bed of lemon halves and ice to keep them cool until plating. A light white wine like sauvignon blanc or an unoaked chardonnay pairs beautifully.

Cultural Background

Skewered and grilled seafood appears across coastal cuisines worldwide; these kabobs echo Mediterranean and coastal American grilling traditions where olive oil, lemon and simple herbs highlight fresh seafood. The technique of alternating vegetables and seafood on skewers is practical—each piece cooks quickly and evenly—while the straightforward seasoning reflects summer cooking philosophy: let premium ingredients speak for themselves.

Seasonal Adaptations

In summer, use peak cherry tomatoes and fresh herbs for brightness. In cooler months, swap tomatoes for charred peppers and use preserved lemon or a splash of white wine for acidity. For holiday gatherings, add a glaze of honey and soy (brush lightly during the final minute) to introduce a sweet-savory holiday note—just be mindful that sweet glazes can mask delicate seafood flavors.

Meal Prep Tips

For streamlined weeknight meals, pre-cut fish and peel shrimp the day before, store separately on paper towels in airtight containers, and refrigerate. Soak skewers the night before and keep them submerged in water in the fridge. Assemble skewers 30 minutes before grilling and keep chilled until you’re ready to cook—this ensures pieces remain firm and don’t overcook on the grill while you tend to sides.

These mixed seafood kabobs are a testament to how a few quality ingredients, care in preparation, and a hot grill can produce something that feels celebratory without complication. Gather friends, light the grill, and enjoy the small ritual of cooking and sharing—it’s what summer is for.