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 carrots, diced; 1 cup cooked quinoa; 1/2 cup breadcrumbs; 1 tsp garlic powder; 1 tsp smoked paprika; Salt and pepper to taste; 2 tbsp olive oil; 4 slider buns; 1/2 cup spicy mayo or your favorite sauce; Lettuce leaves for topping

Highlighted under: Natural Healthy Meals Favorites

I absolutely love making Roasted Veggie Sliders for gatherings and casual dinners. They are not only delicious but also packed with nutrients from colorful vegetables. We roast bell peppers, zucchini, and carrots until they caramelize slightly, enhancing their natural sweetness. Combining these veggies with a flavorful patty creates a satisfying bite that even meat lovers enjoy. Served on soft slider buns and topped with a zesty dressing, these sliders become a crowd-pleaser, proving that plant-based can be both tasty and hearty.

Created by

Cassandra Reed

Last updated on 2026-01-13T06:05:41.110Z

When I first made Roasted Veggie Sliders, I was amazed at how vibrant and delectable they turned out. By slow-roasting the vegetables, I unlocked their natural sweetness and added depth to the flavors. I recommend adding a sprinkle of smoked paprika to the mix – it elevates the taste to a whole new level. You can even customize the veggies based on what's in season!

I discovered that the secret to getting perfect sliders is to let the patties rest before assembling. This allows them to firm up, making them easier to handle and preventing them from falling apart. Trust me; these little tips truly make a difference!

        Why You'll Love These Sliders
        Packed with colorful, roasted vegetables bursting with flavor
Perfectly balanced with a zesty dressing
Versatile and customizable for different dietary preferences

      

Vegetable Roasting Techniques

Roasting vegetables is key to achieving rich flavors in these sliders. When preparing the bell peppers, zucchini, and carrots, cut them into uniform pieces to ensure even cooking. Spreading them out on the baking sheet allows the vegetables to roast rather than steam, resulting in that desirable caramelization. Keep an eye on them during the last few minutes; you'll want to see some slight browning around the edges, which indicates that their natural sugars are developing beautifully.

A common mistake is overcrowding the baking sheet, which can lead to uneven roasting. If you find you're making a double batch for a party, use two baking sheets instead. Also, don't forget to stir the vegetables halfway through cooking; this promotes a uniform caramelization and helps prevent any unevenly charred bits.

Creating the Perfect Patty

When combining the roasted vegetables with quinoa and breadcrumbs, make sure to allow your roasted veggies to cool slightly before mixing. This will prevent the mixture from becoming overly mushy. The quinoa acts as a binding agent, while the breadcrumbs add structure. If you prefer a gluten-free option, swap the breadcrumbs for ground oats or gluten-free breadcrumbs; both maintain the integrity of the patties without sacrificing flavor.

While shaping the patties, keep in mind that if they feel too crumbly, adding an extra tablespoon of olive oil or a bit more cooked quinoa can help. Conversely, if they're too wet, a bit more breadcrumbs can help achieve a firmer texture. The patties should feel pliable but not sticky, ideally holding their shape when placed in the skillet.

Ingredients

Veggie Patty Ingredients

1 cup bell peppers, diced
1 cup zucchini, diced
1 cup carrots, diced
1 cup cooked quinoa
1/2 cup breadcrumbs
1 tsp garlic powder
1 tsp smoked paprika
Salt and pepper to taste
2 tbsp olive oil

Slider Assembly Ingredients

4 slider buns
1/2 cup spicy mayo or your favorite sauce
Lettuce leaves for topping

Make sure to wash and chop all your vegetables evenly for uniform roasting.

Instructions

Prepare Your Veggies

Preheat your oven to 400°F (200°C). Chop the bell peppers, zucchini, and carrots into even-sized pieces and spread them out on a baking sheet. Drizzle with olive oil, salt, pepper, and smoked paprika. Toss to coat.

Roast the Vegetables

Roast in the oven for about 25 minutes or until tender and slightly caramelized. Stir halfway through for even roasting.

Make the Veggie Patties

In a large mixing bowl, combine the roasted vegetables with cooked quinoa, breadcrumbs, garlic powder, salt, and pepper. Mix until a cohesive mixture forms. Shape into patties.

Cook the Patties

Heat a non-stick skillet over medium heat. Add a dash of olive oil and cook the patties for about 5 minutes on each side or until golden brown.

Assemble the Sliders

Cut the slider buns in half. Spread spicy mayo on both sides, add a lettuce leaf, and place a veggie patty in between. Serve immediately.

Feel free to experiment with different veggies and spices to make it your own!

Pro Tips

For a little extra crunch, add some pickles or jalapeños to your sliders!

Serving Suggestions

These roasted veggie sliders shine when fresh but can also be served in various ways. For a fun twist, pair them with sweet potato fries or a fresh salad topped with citrus vinaigrette. You can also stack them with avocado slices, fresh tomato, or pickled onions for added complexity in flavor and texture. I often serve them at gatherings with a platter of assorted dips for a variety of taste experiences.

To make a meal out of these sliders, consider serving them alongside a hearty soup, such as a tomato basil or a spicy black bean soup. This combination not only satisfies but also complements the flavors of the sliders with contrasting textures.

Storage and Reheating Tips

If you have leftovers, store the cooked patties in an airtight container in the refrigerator for up to 3 days. To keep the slider buns fresh, it’s best to store them separately. For reheating, I recommend using an air fryer or oven; simply place them at 350°F (175°C) for about 8-10 minutes until heated through. This ensures a crispy exterior without drying the patties out.

You can also freeze uncooked patties by placing them on a parchment-lined baking sheet until firm and then transferring them to a freezer-safe bag. They can be stored for up to 3 months. When ready to use, cook them straight from frozen, extending the cooking time slightly to ensure they're heated thoroughly.

Questions About Recipes

→ Can I make these sliders ahead of time?

Yes, you can prepare the patties in advance and store them in the fridge. Just cook them fresh when ready to serve.

→ Are these sliders gluten-free?

You can make them gluten-free by using gluten-free breadcrumbs.

→ What other veggies can I use?

Feel free to substitute vegetables like sweet potatoes, mushrooms, or spinach based on your preference.

→ How can I store leftovers?

Store leftover sliders in an airtight container in the fridge for up to 3 days. They can be reheated in the oven or skillet.