Vegetable Kabobs with Garlic Herb Butter, Fast

Vegetable kabobs with garlic herb butter are one of those things that make a basic weeknight grill suddenly feel a bit special without asking for extra effort. You thread a mix of quick-cooking veggies on skewers, baste them with a simple garlic herb butter, and let the grill do the work. The edges char, the centers stay a little crisp, and the butter drips down over everything.

If you’ve got kids running around or you’re juggling burgers and hot dogs at the same time, prep the skewers earlier in the day and just keep them in the fridge; the actual grilling takes under 20 minutes. I started making these when I got bored of a plain vegetable tray at cookouts, and they’ve become my default “I need a vegetable, but the grill is already hot” move.

Ingredients

Serves 3–4 as a side, 2 as a main with bread or salad

For the kabobs

• 1 medium zucchini (about 200 g / 7 oz), cut into 1.5 cm / ½–⅝ inch thick half-moons
• 1 medium yellow squash (about 200 g / 7 oz), cut into 1.5 cm / ½–⅝ inch thick half-moons
• 1 red bell pepper (about 150 g / 5 oz), seeded and cut into 2.5 cm / 1 inch squares
• 1 yellow or orange bell pepper (about 150 g / 5 oz), seeded and cut into 2.5 cm / 1 inch squares
• 1 small red onion (about 120 g / 4 oz), peeled and cut into 8 wedges, root end left slightly intact so they hold together
• 8–10 medium cremini or white button mushrooms (about 150 g / 5 oz), cleaned and halved if large
• 8–12 cherry or grape tomatoes
• 1–2 tbsp (15–30 ml) neutral oil (canola, sunflower, or light olive oil), for lightly coating the vegetables
• ¾ tsp fine sea salt, plus more to finish
• ½ tsp freshly ground black pepper

For the garlic herb butter

• 6 tbsp (85 g) unsalted butter, softened but still cool
• 3 large garlic cloves, very finely minced or grated
• 2 tbsp finely chopped fresh flat-leaf parsley
• 1 tbsp finely chopped fresh chives or finely sliced green onion tops
• 1 tsp finely chopped fresh rosemary or thyme leaves (don’t go overboard; these are strong)
• 1 tsp lemon zest, finely grated
• 1 tbsp fresh lemon juice
• ½ tsp fine sea salt (reduce to ¼ tsp if your butter is salted)
• ¼ tsp freshly ground black pepper

Substitutions that actually work:

• You can swap some of the veggies based on what you have: eggplant chunks, small parboiled baby potatoes, or thick slices of yellow onion all skewer well. Just keep pieces around 2.5 cm / 1 inch so they cook evenly.
• For a lighter option, use 3 tbsp (45 ml) olive oil + 3 tbsp (45 ml) melted butter in the garlic herb mixture instead of all butter. Still rich, just a bit less heavy.
• If you need it fully dairy-free, use a good-tasting vegan butter and reduce the salt a touch. It won’t brown quite the same way, but the flavor’s still good.

Step-by-Step Vegetable Kabobs with Garlic Herb Butter

1. Soak skewers (if using wood).

   If you’re using wooden or bamboo skewers, submerge them in water for at least 30 minutes, up to a couple of hours. This helps keep them from scorching.

2. Preheat the grill.

   Heat a gas grill to medium-high (about 400°F / 200°C), or set a charcoal grill for direct medium-high heat with a cooler zone on one side. Clean and oil the grates so the vegetables don’t weld themselves on.

3. Prep the vegetables.

   Cut the zucchini, yellow squash, peppers, and onion as listed above. Wipe mushrooms clean with a damp towel and trim the stems if they’re long. Keep pieces fairly uniform so they cook at the same pace.

4. Season and lightly oil.

   In a large bowl, toss all the prepped vegetables except the tomatoes with 1–2 tbsp (15–30 ml) neutral oil, ¾ tsp salt, and ½ tsp pepper until everything has a light, glossy coat. Add the tomatoes and gently toss once or twice.

   One thing — don’t drown the veggies in oil. Too much and you’ll end up with flare-ups and sooty flavors instead of clean grill marks.

5. Make the garlic herb butter.

   In a small bowl, mash together the softened butter, minced garlic, parsley, chives, rosemary or thyme, lemon zest, lemon juice, ½ tsp salt, and ¼ tsp pepper until it’s a smooth, green-flecked paste. Taste a tiny bit. It should be punchy with garlic and lemon — a little saltier than you’d eat by itself, because it’s seasoning all the vegetables.

6. Thread the kabobs.

   Thread vegetables onto the skewers, alternating colors and shapes: pepper, mushroom, zucchini, onion, squash, tomato, and repeat. Leave a tiny bit of space (a few millimeters) between pieces instead of packing them tightly; this helps heat circulate so they roast instead of steam.

   Heads up: if you’re impatient, it’s tempting to jam everything on two skewers. Use more skewers and spread things out; they’ll cook faster and brown better.

7. Brush with garlic herb butter before grilling.

   Melt half of the garlic herb butter in a small saucepan or the microwave. Brush the kabobs on all sides with this melted butter right before they hit the grill.

8. Grill the kabobs.

   Lay the skewers on the grill over direct heat. Cook for 10–14 minutes total, turning every 3–4 minutes. You’re looking for deep grill marks and some char on the edges, with the vegetables just tender.

   If anything starts to darken too quickly, slide that part of the skewer toward the cooler side of the grill. Cherry tomatoes soften faster; if you like them only lightly blistered, you can add them to the skewers halfway through cooking.

9. Baste as they cook.

   After the first turn, brush the kabobs again with some of the remaining melted garlic herb butter. Repeat once more near the end of cooking. They’ll look a bit glossy and you’ll smell the garlic right away.

   (If the grill flares up like crazy when you baste, you’re using too much butter at once. Smaller, more frequent brushing is better.)

10. Check for doneness.

    The zucchini and squash should be tender when pierced with the tip of a knife but not collapsing. Peppers should be a little soft with charred edges, and mushrooms cooked through but still juicy. On most grills, this is around 12 minutes, but go by sight and feel, not just the clock.

11. Finish with fresh garlic herb butter.

    Transfer the kabobs to a platter. While they’re hot, dot or brush them with some of the reserved, unmelted garlic herb butter so it slowly melts over everything. Sprinkle with a pinch of flaky salt if you have it.

    Bold opinion: this final hit of fresh butter matters more than perfect grill marks. It’s what makes the vegetables taste like you fussed when you really didn’t.

12. Rest briefly and serve.

    Let the kabobs sit for 3–5 minutes so the butter soaks in and the juices settle. Serve warm.

What to Expect

You’ll get a platter of glossy, colorful skewers with a mix of char and shine — not magazine-perfect, just nicely blistered and browned in spots. The zucchini and squash stay a bit firm in the center, the peppers soften and sweeten, and the mushrooms turn meaty.

Flavor-wise, it’s garlic-forward with a lemony edge and a fresh hit from the herbs. If your grill runs hot, you’ll have more char and deeper smoky notes; on a gentler grill, the vegetables stay sweeter and a little less intense.

Ways to Change It Up

If you want this to lean vegan, swap the butter for a plant-based stick butter or use half olive oil and skip the resting dots of cold butter at the end. You’ll lose a little of that creamy finish, but the garlic and herbs still punch through.

For a different herb profile, try a “rosemary and thyme” version: skip the chives, double the rosemary and thyme, and add a pinch of red pepper flakes. It edges closer to a Mediterranean vibe and goes really well with grilled lamb or tofu on the side.

You can also turn this into more of a main by threading cubes of parboiled potato and chunks of halloumi onto separate skewers. Cook the potato and cheese skewers a few minutes longer, then brush everything with the same garlic herb butter so you’ve basically built dinner onto sticks.

Serving and Storage

Serve these vegetable kabobs hot off the grill while the garlic herb butter’s still melting. I like them next to grilled chicken, steak, or salmon, but they’re also great with simple sides like lemony couscous, garlic bread, or a pot of herbed rice.

If you’re doing a vegetarian spread, pile the kabobs over a platter of warm quinoa or farro and scrape all the buttery juices from the plate over the grains. It’s a very low-effort way to make the vegetables feel like the main event.

Leftover kabobs keep in an airtight container in the fridge for up to 3 days. The vegetables soften as they sit but the flavor stays strong.

To reheat, slide the veggies off the skewers onto a baking sheet and warm in a 350°F / 175°C oven for 8–10 minutes, or toss them in a hot skillet with a tiny bit of oil or butter until heated through. Microwaving works in a pinch, but the vegetables get softer and you lose any remaining texture.

Common Questions

Can I make these vegetable kabobs without a grill?

Yes. Use a stovetop grill pan over medium-high heat, or roast the skewers on a parchment-lined baking sheet at 425°F / 220°C for about 15–20 minutes, turning once. You won’t get the same smoky flavor in the oven, but the garlic herb butter still does a lot of heavy lifting.

The garlic always burns on my grill. What am I doing wrong?

Two things usually cause this: heat that’s too high, and putting all the garlic directly on the grill from the start. Keep the grill at medium-high, not full blast, and don’t over-saturate the skewers with butter on the first pass. Brushing a little at a time and basting more toward the end keeps the garlic fragrant instead of bitter.

Can I prep these ahead for a party?

You can cut the vegetables and mix the garlic herb butter up to 24 hours ahead. Store both in the fridge, tightly covered. Thread the skewers a few hours before grilling and keep them on a tray, wrapped, in the fridge. I don’t love brushing with butter too far ahead because the garlic can oxidize and taste harsh.

What vegetables should I avoid on kabobs?

Anything super delicate or watery — like very ripe tomatoes or thin asparagus tips — tends to fall apart or burn before sturdier veg are ready. If you really want those, put them on their own skewers so you can pull them off earlier.

Is there a food-safe way to handle leftover garlic herb butter?

Any butter that’s been used for basting on the grill is a one-and-done situation; don’t save it. But the clean garlic herb butter you kept separate in the fridge is fine for a few days. I’ll sometimes spread leftover compound butter on bread and toast it, or melt a spoonful over boiled potatoes.

Garlic butter on grilled skewers has become pretty universal, but kabobs themselves go way back. The word “kebab” likely came to English via Turkish and Persian words for roasted meat on skewers, and versions of shish kebab show up across the Middle East and beyond. If you’re into food history, this overview of kebab’s origins from Babbel’s cultural history of the kebab and the broader entry on kebab and its regional variations are both interesting dives.

I’ve made these vegetable kabobs with garlic herb butter on every kind of grill, from a wobbly campsite setup to a fancy backyard one, and the only real non-negotiable is that final spoonful of fresh butter at the end. If you tweak the vegetables or herbs, tell me how it went — I’m always looking for an excuse to add another combo to my mental kabob rotation.