Mushroom Patty Sliders

Highlighted under: Comfort Food

I am excited to share my favorite recipe for Mushroom Patty Sliders! These little bites are packed with umami flavor thanks to the mushrooms, making them a fantastic meatless option that even non-vegetarians will love. I often serve them at gatherings, and they never fail to impress my guests. With simple ingredients and a straightforward technique, these sliders can be whipped up quickly for a game day snack or a weeknight dinner. Trust me, you’ll want to keep this recipe close!

Phoebe Turner

Created by

Phoebe Turner

Last updated on 2026-01-13T00:16:14.215Z

When I first created this recipe for Mushroom Patty Sliders, I was looking for a way to enjoy sliders without any meat. The result was a delightful combination of flavors and textures that made my taste buds dance. The key is in the right mix of ingredients—using fresh mushrooms gives a savory depth while binding it all together with breadcrumbs.

I often like to add various toppings depending on what I have on hand, from fresh avocado slices to spicy mustard. This flexibility means I can keep the recipe fresh every time I make it. Best of all, they’re great for meal prep, so I can easily cook a batch and enjoy throughout the week!

Why You Will Love These Sliders

  • Rich umami flavor with a satisfying texture
  • Versatile toppings for endless variations
  • Perfectly sized for snacks or casual dinners

The Heart of the Sliders: Mushroom Mixture

The key to achieving a rich umami flavor in your mushroom patties lies in the mushrooms themselves. Opt for a mix of cremini and shiitake mushrooms for added depth; the variety enhances both the taste and texture, creating a more satisfying bite. When sautéing, ensure the heat is medium to high; this allows the mushrooms to release their moisture quickly, resulting in a firmer patty that holds together well.

Don’t rush the cooking process! Allowing the mushroom mixture to cook down completely, until there’s no excess moisture, is crucial. This step is essential to prevent soggy patties. Look for a glossy appearance and a slight browning on the mushrooms, indicating they are ready to be mixed with the other ingredients. Patience here will pay off with a firmer, more flavorful patty.

Crafting the Perfect Patty

When forming your patties, it’s best to slightly oil your hands to prevent sticking. Aim for a diameter of about 2-3 inches; this size is ideal for slider buns and ensures each bite stays balanced with toppings. If the mixture feels too wet, add a bit more breadcrumbs to help it bind together, but avoid making it too dry. Consistency is key to achieving that mouthwatering texture.

To ensure even cooking, keep the patties uniform in size and shape. Using a measuring cup can help in achieving consistency. After frying, check the edges for a golden brown color, which signifies they are well-cooked. This browning not only enhances the flavor but also improves the overall appeal of your sliders when served.

Customization and Serving Ideas

These mushroom sliders are incredibly versatile, allowing for a variety of toppings and sauces. Try adding spicy aioli or a tangy mustard for an extra zing. Additionally, grilled peppers or sautéed spinach can be excellent additions, providing different flavor layers and nutritional boosts. You can even experiment with different cheeses, such as feta or pepper jack, which can bring a unique twist to your sliders.

If you have leftovers, store the patties in the refrigerator for up to three days. To reheat, bake them in the oven at 350°F (175°C) for about 10-15 minutes until heated through. For a quick snack, you can also use the microwave, but be cautious not to overheat them, which can lead to a rubbery texture. Whether you serve them at a gathering or enjoy them as a quick meal, these sliders are sure to impress!

Ingredients

Ingredients

Mushroom Patty Ingredients

  • 2 cups finely chopped mushrooms
  • 1/2 cup breadcrumbs
  • 1/4 cup grated Parmesan cheese
  • 1/4 cup chopped onion
  • 2 cloves garlic, minced
  • 1 egg, beaten
  • 1 teaspoon soy sauce
  • 1 teaspoon dried oregano
  • Salt and pepper to taste

Slider Assembly Ingredients

  • 4 slider buns
  • Lettuce leaves
  • Tomato slices
  • Avocado slices (optional)
  • Condiments of your choice

Use fresh ingredients for the best flavor. Each ingredient adds its own unique touch to these sliders!

Instructions

Instructions

Prepare the Mushroom Mixture

In a large skillet, heat a little olive oil over medium heat. Add the chopped onions and garlic, sautéing them for 2-3 minutes until softened. Then, add the chopped mushrooms and cook until their moisture has evaporated, about 5-7 minutes.

Combine Ingredients

Transfer the cooked mushroom mixture to a bowl. Add breadcrumbs, Parmesan cheese, beaten egg, soy sauce, oregano, salt, and pepper. Mix well until combined.

Form the Patties

From the mixture, form patties that fit your slider buns, ideally around 2-3 inches in diameter.

Cook the Patties

In the same skillet, add a little more olive oil and cook the patties for about 4-5 minutes per side, or until golden brown.

Assemble the Sliders

On each slider bun, place a patty and top with lettuce, tomato, avocado slices, and your favorite condiments. Serve immediately!

Feel free to customize your sliders with different toppings or sauces!

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Pro Tips

  • For added flavor, consider adding spices or herbs that you enjoy. You can even substitute the Parmesan with a vegan alternative to make it dairy-free.

Make-Ahead Tips

You can easily prepare the mushroom mixture a day in advance. Just sauté the onions and garlic, and then cook the mushrooms. Once it cools, store it in an airtight container in the fridge. When ready to use, mix in the remaining ingredients and form the patties. This not only saves time but also allows the flavors to meld overnight, enhancing the taste even more.

If you're looking to meal prep, consider freezing uncooked patties. After forming them, lay them on a baking sheet lined with parchment paper and freeze until solid. Then, transfer them to a freezer bag. They can be cooked straight from frozen; simply add an extra few minutes to the cooking time to ensure they're heated through.

Common Troubleshooting

If your patties fall apart during cooking, it might be due to inadequate binding. Ensure enough breadcrumbs and a beaten egg are included in the mixture. If necessary, you can also incorporate a tablespoon of ground flaxseed mixed with water as a vegan substitute for egg, which helps bind the ingredients together effectively.

Conversely, if your patties are too dry after cooking, it could be a sign that the mixture was overcooked during the sautéing phase. Keep a close eye on the mushrooms as they cook; once they release their moisture, it’s time to stop cooking to maintain their juiciness. Remember, the goal is to achieve a well-cooked patty that retains its moisture throughout.

Questions About Recipes

→ Can I make these sliders ahead of time?

Yes, you can prepare the patties in advance and refrigerate them. Just cook them right before serving.

→ Are there any gluten-free options for this recipe?

Absolutely! You can use gluten-free breadcrumbs and slider buns.

→ Can I freeze the mushroom patties?

Yes, these patties freeze well. Just make sure to wrap them tightly and use them within 2 months.

→ What toppings do you recommend?

I love adding avocado, sliced pickles, or a spicy aioli! Get creative with your favorite condiments.

Mushroom Patty Sliders

I am excited to share my favorite recipe for Mushroom Patty Sliders! These little bites are packed with umami flavor thanks to the mushrooms, making them a fantastic meatless option that even non-vegetarians will love. I often serve them at gatherings, and they never fail to impress my guests. With simple ingredients and a straightforward technique, these sliders can be whipped up quickly for a game day snack or a weeknight dinner. Trust me, you’ll want to keep this recipe close!

Prep Time20 minutes
Cooking Duration15 minutes
Overall Time35 minutes

Created by: Phoebe Turner

Recipe Type: Comfort Food

Skill Level: Beginner

Final Quantity: 4 servings

What You'll Need

Mushroom Patty Ingredients

  1. 2 cups finely chopped mushrooms
  2. 1/2 cup breadcrumbs
  3. 1/4 cup grated Parmesan cheese
  4. 1/4 cup chopped onion
  5. 2 cloves garlic, minced
  6. 1 egg, beaten
  7. 1 teaspoon soy sauce
  8. 1 teaspoon dried oregano
  9. Salt and pepper to taste

Slider Assembly Ingredients

  1. 4 slider buns
  2. Lettuce leaves
  3. Tomato slices
  4. Avocado slices (optional)
  5. Condiments of your choice

How-To Steps

Step 01

In a large skillet, heat a little olive oil over medium heat. Add the chopped onions and garlic, sautéing them for 2-3 minutes until softened. Then, add the chopped mushrooms and cook until their moisture has evaporated, about 5-7 minutes.

Step 02

Transfer the cooked mushroom mixture to a bowl. Add breadcrumbs, Parmesan cheese, beaten egg, soy sauce, oregano, salt, and pepper. Mix well until combined.

Step 03

From the mixture, form patties that fit your slider buns, ideally around 2-3 inches in diameter.

Step 04

In the same skillet, add a little more olive oil and cook the patties for about 4-5 minutes per side, or until golden brown.

Step 05

On each slider bun, place a patty and top with lettuce, tomato, avocado slices, and your favorite condiments. Serve immediately!

Extra Tips

  1. For added flavor, consider adding spices or herbs that you enjoy. You can even substitute the Parmesan with a vegan alternative to make it dairy-free.

Nutritional Breakdown (Per Serving)

  • Calories: 250 kcal
  • Total Fat: 10g
  • Saturated Fat: 3g
  • Cholesterol: 50mg
  • Sodium: 300mg
  • Total Carbohydrates: 30g
  • Dietary Fiber: 4g
  • Sugars: 2g
  • Protein: 8g