Grilled garlic butter steak and shrimp kabobs come off the grates with the kind of contrast people remember: charred edges on the steak, juicy shrimp, sweet peppers, and onions that pick up just enough smoke to taste like they belong there. The garlic butter ties everything together without drowning out the grill marks or turning the kabobs greasy.
The trick is keeping the steak and shrimp on the same schedule. Sirloin holds up well on skewers and stays tender if you don’t overcook it, while shrimp need just a few minutes before they turn firm and pink. Reserving half the butter for basting keeps the raw marinade separate and gives you a cleaner, more concentrated finish on the grill.
Below you’ll find the timing that keeps both proteins in their sweet spot, plus a few smart swaps if you want to change up the vegetables or make the kabobs work with what you already have.
The garlic butter soaked into the steak just enough, and the shrimp stayed tender instead of rubbery. I liked that the vegetables held their shape and got those little charred edges on the grill.
Keep these steak and shrimp kabobs handy for grilling nights when you want garlic butter, smoky char, and a fast surf-and-turf dinner on one skewer.
The Trick to Grilling Steak and Shrimp Together Without Losing One
The biggest mistake with surf and turf kabobs is treating the steak and shrimp like they need the same heat for the same amount of time. They don’t. Shrimp go from tender to tight in a blink, while sirloin needs enough time over the fire to pick up a seared crust without drying out. The answer is to cut the steak into even cubes, keep the shrimp large, and grill over medium-high heat so everything cooks quickly but doesn’t scorch before the center is done.
Marinating both proteins in the garlic butter for 30 minutes adds flavor and helps the surface brown nicely, but don’t leave them sitting much longer. The lemon juice is there for brightness, not a long soak; too much time and the shrimp can start to lose that clean snap. Reserve half the butter for basting so you’re brushing on a fresh layer as the kabobs cook, not repeatedly dipping into the raw marinade.
What the Garlic Butter Is Doing Beyond Flavor
- Sirloin steak — Sirloin gives you enough beefy flavor to stand up to the shrimp and butter without needing a long marinade. Cut it into similar-sized cubes so it cooks evenly with the shrimp. If you need a swap, strip steak works well too, but avoid very lean cuts that dry out before the shrimp are done.
- Large shrimp — Use peeled shrimp so they cook cleanly and slide onto the skewers without tearing. Large shrimp hold up better on the grill; smaller ones overcook before the vegetables get any color. If you’re buying frozen shrimp, thaw them fully and pat them dry so the butter sticks instead of sliding off.
- Butter — Melted butter carries the garlic and herbs and helps the skewers baste into a glossy finish. This is not the place for margarine; the flavor and browning just aren’t the same. If you need a dairy-free version, use a good vegan butter that melts smoothly and has enough fat to carry the seasoning.
- Lemon juice and parsley — Lemon keeps the butter from tasting flat, and parsley adds a fresh finish that cuts through the richness. Fresh lemon matters here because bottled juice tastes dull once it hits the grill. Parsley can be swapped for a little chopped chives if that’s what you have, but keep the herb light so it doesn’t fight the garlic.
- Bell peppers and onions — These vegetables give the kabobs something sweet and savory to char against. Cut them into pieces that are large enough to stay on the skewer and not collapse over the heat. If you want a lower-carb version, stick with peppers, onions, and mushrooms and skip any starchy vegetables that need longer cooking.
Building the Kabobs So Everything Finishes at the Same Time
Mixing the Garlic Butter
Stir the melted butter, garlic, parsley, lemon juice, salt, and pepper until the mixture looks glossy and flecked with herbs. The garlic should be evenly distributed, not clumped at the bottom. If the butter starts to solidify while you work, warm it just enough to loosen it again; cold butter won’t coat the meat well and won’t baste evenly on the grill.
Marinating the Steak and Shrimp
Coat the steak and shrimp in the butter mixture and let them sit for 30 minutes while you prep the vegetables and skewers. That short rest gives the surface flavor without breaking down the shrimp. If the shrimp stay in the marinade much longer, the acid from the lemon can make the texture less plump, so keep an eye on the clock.
Threading the Skewers
Alternate steak, shrimp, peppers, and onions so each skewer has a mix of colors and cooking times. Leave a little space between pieces instead of packing everything tight; crowded skewers steam, and steamed kabobs won’t get those browned edges. If you’re using wooden skewers, soak them first so they don’t scorch over the flames.
Grilling and Basting
Place the kabobs over medium-high heat and cook for 3 to 4 minutes per side, brushing with the reserved butter as they grill. You’re looking for opaque shrimp, seared steak edges, and vegetables that still have a little bite. If the grill is too hot, the butter can flare and burn before the inside cooks, so keep a cooler zone ready and move the skewers if needed.
Ways to Adjust These Kabobs Without Losing the Point
Dairy-Free Garlic Baste
Swap the butter for a dairy-free stick butter that melts cleanly and tastes neutral. You’ll still get the glossy coating and garlic finish, but choose one with enough fat so it doesn’t separate on the grill. Olive oil works in a pinch, though it gives a leaner result and won’t cling to the steak quite as well.
All-Steak or All-Shrimp Skewers
If you want to simplify the timing, make the whole batch with just steak or just shrimp. Steak-only kabobs can stay on the grill a little longer for deeper char, while shrimp-only kabobs cook fast and are done the moment they turn pink and curl into a loose C. The flavor stays the same, but the cook time becomes easier to control.
Gluten-Free and Low-Carb Serving Style
These kabobs are naturally gluten-free as written, which makes them an easy main for a mixed crowd. For a lower-carb plate, serve them over cauliflower rice or a crisp salad instead of bread or pasta. The kabobs already bring plenty of richness, so a simple side keeps the meal balanced.
Storage and Reheating
- Refrigerator: Store leftovers in an airtight container for up to 3 days. The shrimp will firm up a bit after chilling, so don’t expect the same just-off-the-grill texture.
- Freezer: These freeze best if you remove the meat and vegetables from the skewers first. Freeze in a sealed container for up to 2 months, though the shrimp may soften slightly after thawing.
- Reheating: Warm gently in a skillet over medium-low heat or in a 300°F oven until just heated through. High heat dries out the shrimp fast, so skip the microwave if you can.
Questions I Get Asked About This Recipe
Grilled Garlic Butter Steak and Shrimp Kabobs
Ingredients
Equipment
Method
- In a small bowl, mix melted butter, garlic, parsley, lemon juice, salt, and pepper until evenly combined. The mixture should look glossy and speckled with herbs.
- Set aside half of the garlic butter for basting. Keep the reserved portion covered so it’s ready for grilling.
- Toss the cubed sirloin steak and peeled shrimp in the remaining garlic butter until coated. Press the meat and shrimp gently to help the butter cling.
- Marinate the steak and shrimp for 30 minutes. Keep refrigerated during this time for food safety.
- Thread steak, shrimp, and bell peppers and onions alternately onto skewers, leaving a little space between pieces. Arrange so the steak and shrimp both remain clearly visible.
- Preheat the grill over medium-high heat, then place the skewers on the grates. Grill for 3 to 4 minutes per side, keeping the heat steady.
- Baste the kabobs with the reserved garlic butter during grilling. Look for caramelized edges on the steak and pink shrimp as they finish.
- Serve immediately after grilling. Plate the kabobs right away so the butter stays melted and the shrimp stays tender.
