Grilled Vegetable Sliders

Highlighted under: Natural Recipes

I absolutely love making Grilled Vegetable Sliders, especially during the summertime when fresh veggies are at their peak. There's something so satisfying about grilling zucchini, bell peppers, and eggplant until they’re tender and slightly charred. I've tried various combinations of toppings, and I find that a spread of garlic aioli and a sprinkle of arugula truly elevates these sliders. With each bite, I'm reminded that meatless options can be just as hearty and delicious, making these sliders a perfect choice for any gathering.

Aileen Prescott

Created by

Aileen Prescott

Last updated on 2026-01-12T07:03:35.057Z

When I first created these Grilled Vegetable Sliders, I wanted to craft a dish that would impress both vegetarians and meat-eaters alike. I marinated the veggies in a mix of olive oil, balsamic vinegar, and herbs before grilling, which adds an incredible depth of flavor. The grilling brings out the natural sweetness of the vegetables, making them irresistibly delicious.

One particular trick I discovered is to slice the eggplant thicker than the other vegetables. This prevents it from becoming mushy and allows it to hold its shape during grilling, giving the slider a robust texture. Trying it this way takes your sliders to the next level!

Why You Will Love This Recipe

  • Vibrant, grilled flavors that celebrate fresh vegetables
  • Customizable with your favorite toppings and spreads
  • Healthy and satisfying, perfect for any occasion

Flavor Profiles and Cooking Techniques

Grilling vegetables can intensify their natural sweetness and develop a smoky depth of flavor. For the best results, aim for a medium-high heat setting on your grill. This ensures a good char without overcooking the veggies. Keep an eye on them, as zucchini and bell peppers may take around 5-7 minutes per side, while eggplant could require closer to 10 minutes to become perfectly tender. Trust me, those grill marks are not just for aesthetics; they enhance the taste.

To further enhance the flavors, consider adding a pinch of smoked paprika to your marinade. This ingredient adds a subtle smokiness that complements the grilled vegetables beautifully. Moreover, if you find that eggplant tends to turn bitter for you, slicing them and salting them beforehand can help draw out excess moisture and bitterness. Rinse and dry before marinating to achieve a more balanced taste in your sliders.

Make-Ahead Options and Storage Tips

You can certainly make this recipe ahead of time, making it a great meal prep option. The marinated vegetables can be prepared a day in advance and stored in an airtight container in the fridge. When you’re ready to grill, just bring them to room temperature for more even cooking. Leftover grilled vegetables can also be kept in the refrigerator for up to three days, which makes them perfect for adding to salads or grain bowls later on.

If you want to save some time during assembly, consider making the garlic aioli a day prior as well. Store it in the fridge, covered tightly. The flavors meld and improve overnight, resulting in a more potent garlic flavor that enhances the sliders. For freezing, grill the vegetables, then let them cool completely before placing them in freezer-safe bags. They can be stored for up to three months—just thaw before grilling or reheating.

Creative Variations and Serving Suggestions

These Grilled Vegetable Sliders can be easily tailored to suit your taste preferences. Try swapping out the vegetables based on what you have available or in season. For example, mushrooms or asparagus can add a different texture and flavor profile. You might also incorporate some slices of fresh mozzarella or feta for a creamy element that complements the grilled veggies beautifully.

For an added crunch, consider layering in some pickled red onions or sliced cucumbers just before serving. This contrasting texture enhances the overall experience. As for serving, pair your sliders with sweet potato fries or a light, tangy coleslaw that balances the richness of the garlic aioli. These accompaniment choices will round out your meal beautifully and offer a delightful contrast to the grilled flavors.

Ingredients

Gather the following ingredients for your Grilled Vegetable Sliders:

Ingredients

  • 2 zucchinis, sliced
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 eggplant, sliced
  • 1/4 cup olive oil
  • 2 tablespoons balsamic vinegar
  • 1 teaspoon dried oregano
  • Salt and pepper to taste
  • 4 whole-grain slider buns
  • 1/2 cup garlic aioli
  • 1 cup arugula

Make sure to choose fresh, in-season vegetables for the best flavor!

Instructions

Follow these steps to create your perfect Grilled Vegetable Sliders:

Prepare the Vegetables

In a large bowl, combine the sliced zucchinis, bell peppers, and eggplant. In a separate small bowl, whisk together the olive oil, balsamic vinegar, oregano, salt, and pepper. Pour the marinade over the vegetables, tossing to coat evenly. Let them marinate for at least 15 minutes.

Grill the Vegetables

Preheat the grill to medium-high heat. Place the marinated vegetables directly on the grill grates and cook for about 5-7 minutes per side, or until grill marks form and the veggies are tender.

Assemble the Sliders

Remove the vegetables from the grill. Spread garlic aioli on the bottom half of each slider bun. Layer with grilled vegetables and top with fresh arugula. Place the top half of the bun on each slider.

Serve

Serve immediately and enjoy your flavorful Grilled Vegetable Sliders with your favorite side!

These sliders can be made ahead of time and served cold or reheated!

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Pro Tips

  • Feel free to mix and match your favorite vegetables, such as mushrooms or red onions, for added flavor and texture.

Ingredient Insights

Using whole-grain slider buns not only adds a nutty flavor but also increases the nutritional profile, making your meal more satisfying. If you're aiming for a gluten-free option, substituting the buns with lettuce wraps or gluten-free bread can work just as well. Just ensure your chosen buns can hold the grilled toppings without falling apart!

Olive oil plays a crucial role in helping the vegetables caramelize on the grill while also infusing them with flavor. If you want to experiment, swap it out for avocado oil, which has a higher smoke point and offers a milder taste, allowing the veggies' natural flavors to shine through.

Troubleshooting Common Issues

If your vegetables start to burn on the grill, it could be due to the heat being too high or not enough oil in your marinade. To prevent burning, consider using a grilling basket or skewers to keep your veggies intact and allow for easier handling, especially with smaller pieces like zucchini.

Another common issue is the grilled vegetables becoming mushy if overcooked. Keep a watchful eye on the clock and test the veggies with a fork; they should be tender but not falling apart. Remember, residual heat will continue to cook them slightly even after you remove them from the grill, so it's better to undercook them slightly than risk them becoming mushy.

Questions About Recipes

→ Can I use different types of bread?

Yes, any type of bread or bun can work well. Try using ciabatta or whole wheat for a different twist!

→ How do I store leftover sliders?

Store leftover sliders in an airtight container in the refrigerator for up to 2 days. Reheat gently before serving.

→ Can I make these sliders vegan?

Yes! Just substitute the garlic aioli with a vegan mayonnaise or your favorite plant-based spread.

→ What sides pair well with these sliders?

Consider serving with a fresh salad, sweet potato fries, or grilled corn on the cob for a delicious meal!

Grilled Vegetable Sliders

I absolutely love making Grilled Vegetable Sliders, especially during the summertime when fresh veggies are at their peak. There's something so satisfying about grilling zucchini, bell peppers, and eggplant until they’re tender and slightly charred. I've tried various combinations of toppings, and I find that a spread of garlic aioli and a sprinkle of arugula truly elevates these sliders. With each bite, I'm reminded that meatless options can be just as hearty and delicious, making these sliders a perfect choice for any gathering.

Prep Time20 minutes
Cooking Duration15 minutes
Overall Time35 minutes

Created by: Aileen Prescott

Recipe Type: Natural Recipes

Skill Level: Intermediate

Final Quantity: 4 servings

What You'll Need

Ingredients

  1. 2 zucchinis, sliced
  2. 1 red bell pepper, sliced
  3. 1 yellow bell pepper, sliced
  4. 1 eggplant, sliced
  5. 1/4 cup olive oil
  6. 2 tablespoons balsamic vinegar
  7. 1 teaspoon dried oregano
  8. Salt and pepper to taste
  9. 4 whole-grain slider buns
  10. 1/2 cup garlic aioli
  11. 1 cup arugula

How-To Steps

Step 01

In a large bowl, combine the sliced zucchinis, bell peppers, and eggplant. In a separate small bowl, whisk together the olive oil, balsamic vinegar, oregano, salt, and pepper. Pour the marinade over the vegetables, tossing to coat evenly. Let them marinate for at least 15 minutes.

Step 02

Preheat the grill to medium-high heat. Place the marinated vegetables directly on the grill grates and cook for about 5-7 minutes per side, or until grill marks form and the veggies are tender.

Step 03

Remove the vegetables from the grill. Spread garlic aioli on the bottom half of each slider bun. Layer with grilled vegetables and top with fresh arugula. Place the top half of the bun on each slider.

Step 04

Serve immediately and enjoy your flavorful Grilled Vegetable Sliders with your favorite side!

Extra Tips

  1. Feel free to mix and match your favorite vegetables, such as mushrooms or red onions, for added flavor and texture.

Nutritional Breakdown (Per Serving)

  • Calories: 250 kcal
  • Total Fat: 12g
  • Saturated Fat: 2g
  • Cholesterol: 0mg
  • Sodium: 315mg
  • Total Carbohydrates: 34g
  • Dietary Fiber: 5g
  • Sugars: 4g
  • Protein: 6g