Roasted Veggie Sliders

Name: Roasted Veggie Sliders
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 4 servings
Ingredients: 1 cup bell peppers, diced; 1 cup zucchini, diced; 1 cup red onion, diced; 2 tablespoons olive oil; 1 teaspoon garlic powder; 1 teaspoon dried oregano; Salt and pepper to taste; 4 slider buns; Avocado yogurt sauce (for serving)

Highlighted under: Classic Comfort Food Recipes

I absolutely love making Roasted Veggie Sliders for gatherings or a cozy night in. There's something magical about the combination of roasted veggies, flavorful seasonings, and a perfectly toasted bun that makes each bite satisfying. The best part is that you can customize these sliders with your favorite vegetables, making them as colorful and nutritious as you desire. In just under an hour, you can whip up these delightful sliders that are sure to impress everyone at the table!

Created by

Abigail Moore

Last updated on 2026-01-13T06:55:49.773Z

When I first experimented with Roasted Veggie Sliders, I was amazed at how such simple ingredients could create an explosion of flavor. I decided to roast bell peppers, zucchini, and red onion, all seasoned with fresh herbs and olive oil. The trick is to roast the veggies until they are slightly caramelized, which enhances their natural sweetness and adds depth to the sliders.

During one of our family gatherings, I served these sliders along with an avocado yogurt sauce, and it was a hit! The creamy sauce perfectly complemented the sliders and added a refreshing twist. I learned that these sliders not only taste amazing but are also versatile enough to accommodate a variety of dietary preferences.

Why You'll Love These Sliders
Bursting with vibrant flavors from roasted fresh veggies
Customizable to suit your taste and dietary needs
Perfect finger food for parties and gatherings

Vegetable Selection Tips

Choosing the right vegetables is key to making flavorful sliders. Bell peppers, zucchini, and red onion are great for roasting due to their natural sweetness and ability to caramelize, but feel free to experiment. Try adding mushrooms for an earthy flavor, or sweet potatoes for a touch of sweetness. Ensure your veggies are uniformly sized for even cooking; this helps each piece get that perfect roast without any undercooked or overly charred parts.

When prepping your vegetables, ensure they are thoroughly washed and dried. Excess moisture can lead to steaming instead of roasting, preventing that desirable caramelization. Aim for bite-sized pieces, ideally around ½ inch, to allow them to cook adequately while still packing all the flavor you want in each bite.

Perfecting the Avocado Yogurt Sauce

The avocado yogurt sauce is more than just a topping; it adds creaminess and a fresh flavor that complements the roasted veggies beautifully. To make it creamy, use ripe avocados and Greek yogurt for added tanginess. Blend until smooth, and if it’s too thick, consider adding a splash of lime juice or a little water to achieve your desired consistency.

Consider customizing this sauce according to your taste. Add garlic for an extra kick or fresh herbs like cilantro or basil for added freshness. Not only does this sauce enhance the flavor profile, but using yogurt also ups the nutritional value, making it a great option for both health-conscious eaters and those looking to indulge.

Serving Suggestions and Variations

These sliders are highly versatile! For a fun twist, consider adding slices of pickled jalapeños for a spicy kick or using different types of bread, like whole grain or brioche slider buns, to enhance flavor. You can also stack your sliders with fresh greens like arugula or spinach for added texture and nutrition, creating a mini sandwich that feels gourmet.

If you're making these sliders for a gathering, consider serving them as part of a build-your-own slider station. Provide various toppings like sliced tomatoes, cucumbers, or different spreads for guests to customize their bites. This interactive element will not only be engaging but also cater to diverse dietary preferences, ensuring everyone finds something they love.

Ingredients

For the Sliders

1 cup bell peppers, diced
1 cup zucchini, diced
1 cup red onion, diced
2 tablespoons olive oil
1 teaspoon garlic powder
1 teaspoon dried oregano
Salt and pepper to taste
4 slider buns
Avocado yogurt sauce (for serving)

Mix and match your favorite veggies for a personalized touch!

Instructions

Roast the Vegetables

Preheat the oven to 400°F (200°C). In a bowl, toss together the diced bell peppers, zucchini, and red onion with olive oil, garlic powder, oregano, salt, and pepper. Spread the veggies onto a baking sheet in a single layer. Roast in the oven for 25-30 minutes, or until they are tender and slightly caramelized.

Prepare the Sliders

Once the vegetables are done roasting, remove them from the oven and let them cool slightly. Slice the slider buns in half and toast them lightly. Fill each bun with a generous amount of roasted veggies and top with avocado yogurt sauce.

Serve and Enjoy

Serve the sliders warm with extra sauce on the side. Enjoy these delightful bites at your next gathering or as a healthy weeknight dinner!

Feel free to add cheese or other toppings as desired!

Pro Tips

For an extra kick, add some chili flakes or sriracha to the vegetables before roasting.

Storage and Make-Ahead Tips

If you want to prepare in advance, roast the vegetables up to two days ahead of time. Store them in an airtight container in the refrigerator to maintain freshness. Just reheat in a skillet over medium heat for about 5-7 minutes before assembling the sliders. This way, you can spend more time enjoying the company of your guests instead of cooking amidst the gathering.

The assembled sliders are best eaten fresh, but if you have leftovers, store the individual components separately. Avoid combining the sauce with the roasted vegetables until you’re ready to serve to keep everything from getting soggy. The vegetables can also be reheated in the oven at 350°F for about 10 minutes or until warmed through.

Accommodating Dietary Restrictions

These sliders are naturally vegetarian and can be made vegan by substituting Greek yogurt with a plant-based yogurt alternative. If you're accommodating gluten-free diets, choose gluten-free slider buns or use lettuce wraps as a bun alternative, which will add a fresh crunch and keep the sliders light.

For those looking to up the protein content, consider adding ingredients like chickpeas or black beans to the roasted veggie mix. This not only enhances the dish's heartiness but also offers an additional flavor dimension that pairs wonderfully with the avocado yogurt sauce.

Scaling the Recipe

This recipe can easily be scaled for larger gatherings. Simply double or triple the quantities of each ingredient, ensuring your roasting pans aren't overcrowded, as this can lead to uneven cooking. If roasting in batches feels too cumbersome, consider using multiple baking sheets to make the process more efficient.

If you're planning to serve a smaller crowd, you can also downsize the recipe by half and still enjoy the sliders without sacrificing flavor. The versatility of this dish makes it perfect for adjusting the ingredient amounts based on your needs, ensuring minimal waste and maximum enjoyment.

Questions About Recipes

→ Can I use frozen vegetables instead of fresh?

While fresh veggies provide the best flavor and texture, if you're in a pinch, you can use frozen veggies. Just be sure to thaw and drain them before roasting.

→ What can I replace the slider buns with?

You can use lettuce wraps for a low-carb option or whole wheat tortillas for a different take on the sliders.

→ How do I store leftovers?

Store any leftover roasted veggies in an airtight container in the fridge for up to 3 days. Reheat before serving.

→ Can these sliders be made vegan?

Absolutely! Just ensure that the yogurt sauce is plant-based, and you're all set for a delicious vegan treat.