Easy Slider Mushroom Swiss Veggie Sliders

Name: Easy Slider Mushroom Swiss Veggie Sliders
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Yield: 4 servings
Ingredients: 1 lb mushrooms, finely chopped; 1 small onion, diced; 2 cloves garlic, minced; 1 cup breadcrumbs; 1/2 cup grated Parmesan cheese; 1 egg, beaten; 1 tsp dried oregano; Salt and pepper, to taste; 4 slices Swiss cheese; Slider buns; 1/2 cup mayonnaise; 1 tbsp Dijon mustard; 1 tsp lemon juice; Salt and pepper, to taste

Highlighted under: Quick & Easy

I love these Easy Slider Mushroom Swiss Veggie Sliders for their rich, umami flavor and satisfying texture. Every time I serve them, I'm amazed at how the combination of earthy mushrooms and creamy Swiss cheese creates a delicious harmony. This recipe comes together in no time, making it perfect for parties or a quick weeknight dinner. Plus, these sliders are a healthier twist on classic sliders, proving you don't need meat to enjoy a fulfilling meal that everyone will love.

Created by

Callie Morgan

Last updated on 2026-01-14T01:52:17.641Z

When I first created these sliders, I was looking for a flavor-packed vegetarian option that would please meat-lovers and vegetarians alike. The secret lies in the combination of sautéed mushrooms and fresh herbs, which both add depth and savoriness that make every bite satisfying. I learned that cooking the mushrooms until they're nicely browned enhances their flavor and adds a lovely texture.

For the Swiss cheese, I like to use a generous slice, as it melts beautifully and complements the mushrooms perfectly. Pair these sliders with a zesty sauce, and you have a dish that stands out at any gathering. Trust me, once you try these, you’ll keep them as a go-to recipe!

        Why You Will Love These Sliders
        Rich mushroom flavor enhanced by savory herbs
Creamy Swiss cheese that melts beautifully
Easy to make and perfect for gatherings

      

Understanding the Ingredients

The mushrooms in this recipe play a crucial role, providing not just flavor but also texture. When you finely chop the mushrooms, they can release their moisture and create a meaty texture that mimics traditional sliders. I recommend using a mix of cremini and button mushrooms for depth of flavor, but feel free to experiment with other varieties like shiitake or portobello if you prefer. Just keep in mind that some mushrooms have a stronger flavor, which can alter the overall taste of the sliders.

Swiss cheese not only adds creaminess but also melts beautifully, creating a gooey topping that enhances the flavor profile of the sliders. Choosing high-quality Swiss cheese can make a noticeable difference; look for varieties that are aged for a richer taste. If you're looking for a dairy-free option, consider using a plant-based cheese that melts well—just be sure to check if it complements the earthy flavors of the mushrooms.

Cooking Techniques to Remember

When sautéing the onions and garlic, aim for a medium heat to avoid browning too quickly. You'll want the onions to become translucent—this typically takes about 3 to 4 minutes. Adding the mushrooms afterward allows their moisture to escape, which is vital for achieving that well-browned texture. If you find your mushrooms releasing too much liquid, increase the heat slightly to ensure they caramelize rather than steam.

Forming the patties into 2-3 inch discs helps ensure even cooking. If they are too thick, they might not cook through all the way, leading to a moist center. Keep an eye on the patties while they’re cooking; you want them to develop a golden-brown exterior—about 5 minutes per side should do the trick. If you make the patties ahead of time, store them in the fridge for up to 24 hours before cooking, allowing the flavors to meld together even more.

Ingredients

For the Sliders

1 lb mushrooms, finely chopped
1 small onion, diced
2 cloves garlic, minced
1 cup breadcrumbs
1/2 cup grated Parmesan cheese
1 egg, beaten
1 tsp dried oregano
Salt and pepper, to taste
4 slices Swiss cheese
Slider buns

For the Sauce

1/2 cup mayonnaise
1 tbsp Dijon mustard
1 tsp lemon juice
Salt and pepper, to taste

Instructions

Cooking Steps

Sauté the Vegetables

In a skillet over medium heat, sauté the onions and garlic until translucent. Add the chopped mushrooms and cook until the moisture evaporates and they are browned.

Mix the Ingredients

In a bowl, combine the sautéed mushroom mixture with breadcrumbs, Parmesan cheese, egg, oregano, salt, and pepper. Mix until well combined.

Form the Patties

Shape the mixture into small slider patties, about 2-3 inches in diameter.

Cook the Sliders

Heat a skillet over medium heat, cook the patties for about 5 minutes on each side until golden. Top each patty with a slice of Swiss cheese and cover the pan until melted.

Prepare the Sauce

In a bowl, mix mayonnaise, Dijon mustard, lemon juice, salt, and pepper to create the sauce.

Assemble the Sliders

Place each cheese-topped patty on a slider bun, drizzle with sauce, and serve warm.

Pro Tips

For a spicier kick, add a dash of hot sauce to the sauce mixture. You can also prepare the patties in advance and freeze them for a quick meal later.

Serving and Pairing Suggestions

These sliders can be served with a side of homemade sweet potato fries or a light salad for a complete meal. If you want to elevate the flavor, consider adding some avocado slices or a dollop of avocado aioli on top of each slider. A peppery arugula salad can provide a great contrast to the richness of the sliders and complement the earthy mushroom flavor beautifully.

For gatherings, feel free to set up a slider bar. Provide various toppings like pickles, sautéed bell peppers, or spicy mustard to let guests customize their sliders. This not only makes for an interactive experience but also allows each person to tailor the flavors to their liking.

Make-Ahead and Storage Tips

Preparing the slider patties ahead of time can save you a lot of effort during busy weeks. You can easily make the mixture a day in advance and store it in an airtight container in the fridge. When you're ready to cook, simply shape and fry them for an easy weeknight dinner. If you’re looking to meal prep, consider freezing the formed patties before cooking. Place them in a single layer on a baking sheet and freeze until solid before transferring to a freezer bag. They can last for up to three months in the freezer.

When reheating the cooked sliders, it’s best to do so in the oven rather than the microwave to maintain their crispiness. Preheat your oven to 350°F (175°C) and heat the sliders for about 10-15 minutes until warmed through. This will help restore the lovely texture that might get lost in the microwave, ensuring your sliders remain delicious even after storage.

Questions About Recipes

→ Can I make these sliders vegan?

Yes! Substitute the egg with a flaxseed meal mixture and use vegan cheese.

→ Can I use other types of cheese?

Absolutely! Cheddar or gouda are great alternatives if you're looking for different flavors.

→ How can I store leftovers?

Store any leftover sliders in an airtight container in the fridge for up to 3 days.

→ Can I grill these sliders?

Yes! They can be grilled on medium heat for that delicious smoky flavor.