Grilled Vegetable Sliders

Highlighted under: Light Collection

I absolutely love making Grilled Vegetable Sliders during the summer months. These sliders are a fantastic way to showcase the vibrant flavors of fresh vegetables that are in season. I get so excited when I fire up the grill and pile colorful veggies like zucchini, bell peppers, and mushrooms onto the skewers. The smoky char from the grill combined with a sprinkle of herbs creates a deliciously fresh and healthy dish. Served on mini buns with a zesty sauce, these sliders are perfect for barbecues and casual gatherings!

Elodie March

Created by

Elodie March

Last updated on 2026-01-12T01:09:41.245Z

One summer evening, while grilling with friends, I decided to create a meat-free option that would satisfy everyone at the table. I marinated a mix of zucchini, red onion, and bell peppers in a homemade vinaigrette, letting those flavors meld beautifully. When they hit the grill, the aroma was intoxicating, and I knew we were in for a treat.

After grilling the veggies to perfection, I assembled the sliders with some fresh arugula and a drizzle of spicy mayo. Each bite was bursting with flavor! My friends couldn’t believe these were meatless, and they quickly became a favorite at our gatherings.

Why You'll Love These Sliders

  • Fresh, grilled flavors that capture summer's essence
  • Customizable with your favorite veggies and sauces
  • A healthy and satisfying alternative to traditional sliders

Perfecting Your Grilling Technique

To achieve the perfect grill marks and smoky flavor, ensure your grill grates are hot before placing the vegetables on them. Preheating your grill to a medium-high temperature, around 400°F to 450°F (200°C to 230°C), will allow for that desirable char while keeping the veggies tender. I recommend giving the grill at least 10 minutes to reach this heat level before you start grilling. Additionally, keep a close eye on the vegetables as they cook; turning them every 2-3 minutes will ensure even cooking and prevent burning.

Using a grill basket can simplify handling smaller pieces of vegetables like onion slices. It also allows for a more consistent grilling experience as you can stir the contents without the risk of losing pieces through grill grates. If you don't have a grill basket, threading the veggies onto skewers can also work. Just remember to soak wooden skewers in water for 30 minutes beforehand to prevent them from catching fire!

Ingredient Insights and Substitutions

The combination of zucchini, bell peppers, and red onion creates a colorful and flavorful base for these sliders, but feel free to change things up! For a sweeter touch, consider adding grilled eggplant or portobello mushrooms. These not only add a unique flavor but also enhance the texture of your sliders. If you’re looking for a spicier kick, try using a jalapeño pepper or a sprinkle of crushed red pepper in the mix.

When it comes to the slider buns, many options are available to suit different dietary needs. Whole wheat buns add a nutty flavor while being more nutritious. For a gluten-free option, check the labels on gluten-free slider buns available at most grocery stores or consider using lettuce leaves for a low-carb version. No matter your choice, toast the buns lightly on the grill for added flavor and a crunchy texture that will elevate your sliders.

Serving Suggestions and Storage Tips

These Grilled Vegetable Sliders can be served with various sides to create a complete meal. Pair them with a light salad drizzled with a lemon vinaigrette or a refreshing coleslaw for added crunch. You can also serve them alongside sweet potato fries or a grain salad for a filling, well-rounded dish. For a picnic-friendly option, consider wrapping them individually in parchment paper to keep everything fresh and easy to handle.

If you have leftovers, they can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, I suggest using an oven to maintain the crispness of the grilled veggies—simply place them in the oven at 350°F (175°C) for about 10 minutes. You can also freeze the grilled vegetables separately; they will stay fresh for up to a month. Just remember to let them cool completely before transferring them to freezer bags, and label them for easy identification later!

Ingredients

For the Sliders

  • 2 zucchinis, sliced
  • 1 red bell pepper, cut into strips
  • 1 yellow bell pepper, cut into strips
  • 1 red onion, sliced
  • 2 tablespoons olive oil
  • 1 teaspoon balsamic vinegar
  • Salt and pepper, to taste
  • 8 slider buns
  • Fresh arugula, for serving
  • Spicy mayo (optional), for serving

Instructions

Prepare the Vegetables

In a bowl, combine the sliced zucchini, bell peppers, and red onion. Drizzle with olive oil and balsamic vinegar, then season with salt and pepper. Toss to coat the vegetables evenly.

Grill the Veggies

Preheat your grill to medium-high heat. Place the marinated vegetables directly on the grill grates or use a grill basket for easier handling. Grill for about 8-10 minutes, turning occasionally, until the veggies are tender and have nice grill marks.

Assemble the Sliders

Once grilled, remove the vegetables from the grill. Place a generous amount of grilled vegetables on the bottom half of each slider bun. Top with fresh arugula and a drizzle of spicy mayo if desired. Cap with the other half of the bun.

Serve and Enjoy

Serve your grilled vegetable sliders warm and enjoy the burst of flavors with every bite! Perfect for picnics, gatherings, or an easy weeknight dinner.

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Pro Tips

  • For added flavor, try marinating the vegetables for at least 30 minutes before grilling. You can also customize the sliders with additional toppings like avocado, feta cheese, or pesto.

Tips for a Customized Flavor Profile

If you want to add a bit more depth to your flavor profile, consider tossing your vegetables in marinade before grilling. A simple mix of olive oil, garlic, and fresh herbs like thyme or rosemary can enhance the overall taste. Be sure to let the veggies sit for at least 30 minutes to absorb those flavors—longer if you can spare the time! This extra step makes a significant difference in flavor and really showcases the fresh ingredients.

Another way to modify this recipe is by experimenting with different sauces. While spicy mayo is delicious, a garlic aioli or homemade pesto can elevate these sliders to new heights. You can also add a sprinkle of feta or goat cheese on top to give a creamy addition that complements the veggies wonderfully. Customize to your taste; each option adds its own unique touch to the final dish!

Scaling for Larger Gatherings

This recipe is easily scalable, making it perfect for gatherings. If you're expecting a crowd, simply double or triple the vegetable quantities while maintaining the same marination and grilling techniques. Just make sure not to overcrowd the grill; this could lead to steaming rather than grilling. If necessary, grill in batches and keep the cooked vegetables warm in a low-temperature oven until it’s time to assemble the sliders.

Additionally, preparing the sliders can be streamlined by setting up a slider assembly station. Lay out the buns, grilled veggies, sauces, and toppings so that guests can create their own sliders. It’s not only a fun, interactive option but also allows everyone to customize their meal according to their preferences, accommodating any dietary restrictions effectively.

Questions About Recipes

→ Can I use other vegetables?

Absolutely! Feel free to add any of your favorite vegetables such as mushrooms, eggplant, or asparagus.

→ How can I make these sliders vegan?

Simply omit the spicy mayo or use a vegan mayo as an alternative.

→ Can these sliders be made ahead of time?

Yes! You can grill the vegetables in advance and assemble the sliders just before serving.

→ What should I serve with the sliders?

These sliders pair wonderfully with a side salad, sweet potato fries, or grilled corn on the cob.

Grilled Vegetable Sliders

I absolutely love making Grilled Vegetable Sliders during the summer months. These sliders are a fantastic way to showcase the vibrant flavors of fresh vegetables that are in season. I get so excited when I fire up the grill and pile colorful veggies like zucchini, bell peppers, and mushrooms onto the skewers. The smoky char from the grill combined with a sprinkle of herbs creates a deliciously fresh and healthy dish. Served on mini buns with a zesty sauce, these sliders are perfect for barbecues and casual gatherings!

Prep Time15 minutes
Cooking Duration10 minutes
Overall Time25 minutes

Created by: Elodie March

Recipe Type: Light Collection

Skill Level: Easy

Final Quantity: 4 servings

What You'll Need

For the Sliders

  1. 2 zucchinis, sliced
  2. 1 red bell pepper, cut into strips
  3. 1 yellow bell pepper, cut into strips
  4. 1 red onion, sliced
  5. 2 tablespoons olive oil
  6. 1 teaspoon balsamic vinegar
  7. Salt and pepper, to taste
  8. 8 slider buns
  9. Fresh arugula, for serving
  10. Spicy mayo (optional), for serving

How-To Steps

Step 01

In a bowl, combine the sliced zucchini, bell peppers, and red onion. Drizzle with olive oil and balsamic vinegar, then season with salt and pepper. Toss to coat the vegetables evenly.

Step 02

Preheat your grill to medium-high heat. Place the marinated vegetables directly on the grill grates or use a grill basket for easier handling. Grill for about 8-10 minutes, turning occasionally, until the veggies are tender and have nice grill marks.

Step 03

Once grilled, remove the vegetables from the grill. Place a generous amount of grilled vegetables on the bottom half of each slider bun. Top with fresh arugula and a drizzle of spicy mayo if desired. Cap with the other half of the bun.

Step 04

Serve your grilled vegetable sliders warm and enjoy the burst of flavors with every bite! Perfect for picnics, gatherings, or an easy weeknight dinner.

Extra Tips

  1. For added flavor, try marinating the vegetables for at least 30 minutes before grilling. You can also customize the sliders with additional toppings like avocado, feta cheese, or pesto.

Nutritional Breakdown (Per Serving)

  • Calories: 220 kcal
  • Total Fat: 10g
  • Saturated Fat: 1g
  • Cholesterol: 0mg
  • Sodium: 300mg
  • Total Carbohydrates: 30g
  • Dietary Fiber: 4g
  • Sugars: 6g
  • Protein: 5g