The Vegan Mushroom Pesto Sandwich is bursting with flavor, herby, nutty, and creamy all in one bite. It’s the ultimate choice for a quick weeknight dinner or meal prep for your workweek. You won’t want to miss the freshness of homemade pesto and the delightful textures of sautéed mushrooms and fresh veggies!

Table of Contents
Recipe at a Glance
| Best for | Quick weeknight meals |
| Difficulty | Easy |
| Total time | 30 minutes |
| Servings | 2 sandwiches |
| Key tip | Use fresh basil for vibrant flavor |
| Smart swap | Substitute walnuts for cashews |
What Ingredients Do You Need for This Delicious Sandwich?
If you’re asking yourself what makes up this delectable sandwich, it’s simple! Get ready to gather just a handful of fresh ingredients to create your very own Vegan Mushroom Pesto Sandwich.

| 2 cups fresh basil leaves |
| 1/2 cup raw cashews |
| 2 cloves garlic |
| 1/4 cup nutritional yeast |
| 1/2 cup olive oil (divided) |
| Juice of 1 lemon |
| Salt and pepper to taste |
| 8 oz (225g) mushrooms (such as cremini or portobello), sliced |
| 1 avocado, sliced |
| 1 tomato, sliced |
| 1 small red onion, thinly sliced |
| 4 slices of whole-grain bread |
| Handful of fresh spinach leaves |
Let’s talk about a few key players in this sandwich. Nutritional yeast, a star ingredient here, gives a cheesy, savory flavor without dairy. It’s filled with B vitamins and adds a hint of umami that’s just irresistible. Then there are the mushrooms, which not only provide a meaty texture but are also packed with antioxidants. For an alternative twist, you can swap out the cashews for walnuts, keeping the same delightful flavor while introducing a different nutritional profile. If you loved the mushrooms in this sandwich, you might enjoy my hearty Mushroom Ragu!
What Kitchen Gear Do You Need to Make This Sandwich?
- Food processor
- Skillet
- Toaster or toaster oven
- Spatula
How Do You Make the Vegan Mushroom Pesto Sandwich Step-by-Step?
Let’s dive into the steps to create this flavor-packed sandwich. It’s as simple as blending, sautéing, and assembling.
Step 1 – Prepare the Vegan Pesto
Start by combining the fresh basil leaves, raw cashews, garlic, nutritional yeast, and lemon juice in your food processor. Pulse until these ingredients are finely chopped. While the processor is running, slowly pour in half a cup of olive oil until the mixture reaches a smooth consistency. Don’t forget to season it with salt and pepper to taste, and set it aside for a moment.
Step 2 – Sauté the Mushrooms
Heat a tablespoon of olive oil in a skillet over medium heat. Once hot, toss in the sliced mushrooms. Sauté for about 5-7 minutes or until they are tender and beautifully golden brown. Season them with salt and pepper as they cook to enhance the flavor further.
| Prep | Cook | Store | Nutritional Values |
|---|---|---|---|
| 10 minutes | 15 minutes | 2 days in the fridge | Approx. 400 calories per sandwich |
Step 3 – Assemble the Sandwich
Toasting your bread is essential for that perfect crunch. Toast the slices of whole-grain bread until they turn golden and crispy. Now, it’s time for the fun part, layering! Spread a generous layer of vegan pesto on one side of each toast. On two slices, layer the sautéed mushrooms, avocado slices, fresh tomato slices, thinly sliced red onion, and a handful of spinach. Finally, top with the remaining bread slices, pesto side down. Cut the sandwiches in half and serve immediately to your delight!
Common Mistakes to Avoid + Pro Tips for Success
Making a delicious Vegan Mushroom Pesto Sandwich can be quite straightforward, but I’ve learned some tips along the way to help improve your experience.
Mistakes to Avoid
- Using old basil: It can result in a bland pesto. Make sure your basil is fresh to maximize flavor.
- Overcooking the mushrooms: This can make them rubbery instead of tender. Keep a close eye while sautéing them.
Tips for Success
- Opt for whole-grain bread for added nutrients and fiber.
- Try letting the pesto sit for a short while to allow the flavors to meld, enhancing the depth.
- Experiment with adding walnuts or pine nuts for a different flavor in the pesto.
Your most important takeaway? Fresh ingredients make all the difference in taste, so don’t skimp on quality!
Why You Will Love This Recipe
The Vegan Mushroom Pesto Sandwich is a delightful, guilt-free indulgence that leaves you feeling satisfied. First off, each bite combines the freshness of the basil pesto with the earthiness of sautéed mushrooms. It’s a fun twist on traditional sandwiches, bringing vibrant flavors and textures together.
Irresistible Flavor Fusion
This sandwich brings together mouthwatering flavors that are perfectly balanced. The creamy avocado and aromatic pesto elevate it to another level, making it a fantastic choice for lunch.
Quick and Easy Meal
With just minimal prep time, this recipe is perfect for busy weekdays. You can whip it up in under 30 minutes, allowing you to enjoy a wholesome meal without the hassle.
Nutritious and Satisfying
The combination of fresh veggies and plant-based ingredients makes this sandwich not only tasty but also packed with nutrients. You’ll feel good about fueling your body with wholesome foods!
Personal Note
As a fan of sandwiches, finding the perfect combination of flavors is always exciting. I’m thrilled to share a tip on how to customize your pesto using seasonal herbs!
Fun Variations, Serving Suggestions, and Storage of Your Sandwich
Let’s explore some creative twists and practical tips to maximize your Vegan Mushroom Pesto Sandwich experience.
Spicy Twist
Looking for a kick? Add some red pepper flakes to your pesto! You can also include roasted red peppers in the layers for an extra layer of flavor.
Ingredient Swaps
If you’re not a fan of avocados, you can replace them with hummus for added creaminess and protein while retaining the spread’s freshness. You can also substitute the whole-grain bread with gluten-free options. For more gluten-free ideas, check out these delightful biscuits!
Perfect Pairing Suggestions
This sandwich pairs beautifully with a light salad or some crispy sweet potato fries. It also makes a fantastic picnic option alongside fruit skewers or a simple chip mix.
Storage Tips
To keep your sandwich fresh, wrap it tightly in parchment paper or foil and store it in the fridge for up to two days. For the best texture, reheat your assembled sandwich in a skillet instead of a microwave, allowing it to get crispy again!
| Variation | Best for | How to do it |
| Spicy Twist | Add heat | Use red pepper flakes |
| Gluten-Free Option | Dietary needs | Substitute with gluten-free bread |
| Hummus Layer | Extra creaminess | Swap avocado for hummus |
| Salad Side | Classy lunch | Pair with a light salad |
More Recipes You Can Try Next
If you enjoyed this Vegan Mushroom Pesto Sandwich, you’re in for a treat with these flavorful recipes.
| Layered Sweet Potato Lasagna | This hearty dish offers wonderful layers that echo the sushi experience. |
| Creamy Crockpot Hot Chocolate | Perfectly warming and great for cold evenings! |
| Thai Quinoa Peanut Salad | Refreshing and packed with flavor, it complements any meal. |
| Pesto Garden Party Vegetarian Pizza | Vibrant Green Vegetable Pesto Garden Party Vegetarian Pizza loaded with flavor and nutrients |
Final Thoughts
The Vegan Mushroom Pesto Sandwich is a delightful blend of fresh flavors and comforting ingredients that come together effortlessly. This recipe not only satisfies cravings but also nourishes your body with wholesome goodness. With its vibrant colors and exciting textures, it’s a dish that elevates any meal. I encourage you to grab the ingredients and enjoy this tasty creation for yourself. Share your kitchen adventures and follow my Pinterest page for more delicious recipes and visual inspiration!
FAQ
Can I use a different type of nut for the pesto?
Absolutely! You can substitute cashews with walnuts, pine nuts, or even almonds. Each nut variety will bring its unique flavor and texture to the pesto, making it adaptable to your taste preferences.
How long is it safe to store the leftovers?
The Vegan Mushroom Pesto Sandwich can be stored in the refrigerator for up to two days. Make sure to wrap it tightly to maintain freshness and flavor.
Can I freeze the pesto?
Yes, you can freeze the pesto! Transfer it to an airtight container or ice cube trays for smaller portions. Just remember to thaw it in the fridge before using.
What other vegetables can I add to the sandwich?
Feel free to get creative! You can add roasted red peppers, arugula, or some sautéed zucchini for an extra flavor boost and added nutrition.
Is this sandwich suitable for meal prep?
Yes, it’s ideal for meal prep! Simply prepare all your ingredients ahead of time and assemble the sandwich when you’re ready to eat.
Vegan Mushroom Pesto Sandwich
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A flavorful delight made with savory mushrooms, creamy avocado, and vibrant pesto, perfect for lunch or a quick dinner.
- Total Time: 30 minutes
- Yield: 2 sandwiches 1x
Ingredients
- 2 cups fresh basil leaves
- 1/2 cup raw cashews
- 2 cloves garlic
- 1/4 cup nutritional yeast
- 1/2 cup olive oil (divided)
- Juice of 1 lemon
- Salt and pepper to taste
- 8 oz (225g) mushrooms (such as cremini or portobello), sliced
- 1 avocado, sliced
- 1 tomato, sliced
- 1 small red onion, thinly sliced
- 4 slices of whole-grain bread
- Handful of fresh spinach leaves
Instructions
- Prepare the Vegan Pesto: Combine the basil, cashews, garlic, nutritional yeast, and lemon juice in a food processor. Pulse until finely chopped, then slowly pour in half a cup of olive oil while processing until smooth. Season with salt and pepper to taste and set aside.
- Sauté the Mushrooms: Heat a tablespoon of olive oil in a skillet over medium heat. Add the sliced mushrooms and sauté for 5-7 minutes until tender and golden brown. Season with salt and pepper.
- Assemble the Sandwich: Toast the whole-grain bread until golden. Spread a layer of vegan pesto on one side of each slice. On two slices, layer sautéed mushrooms, avocado, tomato, red onion, and spinach. Top with remaining bread slices, pesto side down, cut in half, and serve immediately.
Notes
Use fresh basil for vibrant flavor. Swap walnuts for cashews for an alternative twist.
- Author: Vivian Brooks
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Category: Sandwich
- Method: Sautéing
- Cuisine: Vegan
- Diet: Vegan
Nutrition
- Serving Size: 1 sandwich
- Calories: 400
- Sugar: 3g
- Sodium: 250mg
- Fat: 30g
- Saturated Fat: 4g
- Unsaturated Fat: 24g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 8g
- Protein: 10g
- Cholesterol: 0mg

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