What’s better than a cozy night spent whipping up a comforting dish in your kitchen? When preparing a meal like Simple Mushroom Penne with Walnut Pesto, the earthy aroma of sautéing mushrooms fills the air, and I can’t help but feel like I’m indulging in a warm embrace. This delightful vegetarian pasta combines nutty walnut pesto and buttery mushrooms, creating a blend of textures and flavors that makes it a perfect centerpiece for any dinner table. Not only is it quick to prepare—ideal for those busy weeknights—but it’s also satisfying enough to impress your guests. Plus, it’s a fantastic way to elevate pasta night with an elegant twist! So, are you ready to discover how you can elevate your next meal? Let’s dive into this delightful recipe!

Why is this dish a must-try?
Simplicity Made Delicious: Preparing this Simple Mushroom Penne with Walnut Pesto is a breeze, making it perfect for cooks of all skill levels.
Richness in Every Bite: The buttery mushrooms combined with the nutty pesto deliver a flavor explosion that will keep you coming back for more.
Versatile and Fun: You can easily customize it by adding a poached egg or swapping walnuts for your favorite nuts, like pecans or almonds.
Perfect for Any Occasion: This dish can wow your dinner guests or provide a cozy night in with loved ones, offering comforting familiarity in every spoonful.
Time-Saving Wonder: With minimal prep time, you’ll have a gourmet meal ready in under 30 minutes—ideal for busy weeknights when you crave something special.
Don’t forget to check out the delightful Chicken Spinach Mushroom for another effortless yet impressive dish!
Simple Mushroom Penne with Walnut Pesto Ingredients
Get ready to gather these wonderful components!
For the Pasta
• Penne Pasta – The perfect base for this dish; swap with whole wheat for a healthier twist.
For the Mushroom Sauté
• Mushrooms – Essential for that umami flavor; opt for baby bellas or white mushrooms for the best results.
• Butter – Brings richness to the dish; LAND O LAKES® European Style Super Premium Butter yields fantastic flavor. Use olive oil for a vegan option.
• Garlic – A flavor enhancer; fresh garlic works wonders, but powdered can be used in a pinch.
• Salt and Pepper – Key for seasoning; feel free to adjust based on your taste preferences.
For the Walnut Pesto
• Walnuts – The star of the pesto; they provide a rich, nutty flavor. Pine nuts can be a delightful alternative if you wish!
• Parmesan Cheese – Adds depth and a savory kick; leave out for a lighter meal or substitute with nutritional yeast for a vegan touch.
• Olive Oil – Used to achieve the desired pesto consistency; use high-quality oil for the best flavor.
With these ingredients, you’re well on your way to creating a mouthwatering Simple Mushroom Penne with Walnut Pesto, sure to impress!
Step‑by‑Step Instructions for Simple Mushroom Penne with Walnut Pesto
Step 1: Cook the Pasta
Bring a large pot of salted water to a rolling boil over high heat. Add the penne pasta and cook according to the package directions, usually about 8-10 minutes, until al dente. Stir occasionally to prevent sticking. Once cooked, drain the pasta in a colander and set aside, keeping a little pasta water for later use.
Step 2: Sauté the Mushrooms
In a large skillet, melt 2 tablespoons of LAND O LAKES® European Style Super Premium Butter over medium heat. Add 2 minced garlic cloves and sauté for about 1 minute until fragrant. Then, toss in 8 ounces of sliced mushrooms, cooking for 5-7 minutes until they turn golden brown and tender. Stir occasionally for even browning, creating a delicious base for your Simple Mushroom Penne.
Step 3: Prepare the Walnut Pesto
In a food processor, combine 1 cup of walnuts, 2 cloves of garlic, and 1/2 cup of grated Parmesan cheese. Pulse until the mixture is coarsely ground. Slowly drizzle in 1/2 cup of high-quality olive oil while continuing to blend until you reach a creamy consistency. Season the walnut pesto with salt to taste, making sure it complements the flavors of your Simple Mushroom Penne.
Step 4: Combine the Ingredients
Add the cooked penne to the skillet with the sautéed mushrooms. Pour in the walnut pesto and gently toss everything together until the pasta is well-coated. If the mixture seems dry, add a splash of the reserved pasta water to achieve a creamy consistency. Taste and adjust seasoning with extra salt and freshly cracked pepper if needed.
Step 5: Serve the Dish
Plate your Simple Mushroom Penne with Walnut Pesto in warm bowls, garnishing with additional grated Parmesan if desired. For an elegant touch, you could also top it with a poached egg. Serve immediately while it’s hot, allowing the comforting aromas to envelop your dining space and bring smiles to everyone at the table.

How to Store and Freeze Simple Mushroom Penne with Walnut Pesto
Fridge: Store leftovers in an airtight container for up to 3 days. Make sure it’s completely cooled before sealing to prevent condensation and sogginess.
Freezer: You can freeze portions of Simple Mushroom Penne with Walnut Pesto for up to 2 months. Ensure it’s in a freezer-safe container and leave space for expansion as it freezes.
Reheating: When ready to enjoy, thaw overnight in the fridge. Reheat gently on the stovetop or in the microwave, adding a splash of water or extra olive oil to maintain moisture.
Serving: Enjoy it warm, garnished with fresh Parmesan or even a poached egg for an elevated experience.
Make Ahead Options
These Simple Mushroom Penne with Walnut Pesto are perfect for meal prep enthusiasts! You can prepare the walnut pesto up to 3 days in advance by blending the walnuts, garlic, and Parmesan, then storing it in an airtight container in the refrigerator. Additionally, you can sauté the mushrooms up to 24 hours prior; just store them in a separate container to maintain their texture. When you’re ready to serve, cook the penne according to package instructions and reheat the mushrooms gently in a skillet. Combine everything together with the pesto, and you’ll enjoy a delicious meal with minimal weekday effort!
What to Serve with Simple Mushroom Penne with Walnut Pesto
Elevate your dinner experience with delightful accompaniments that enhance every bite of this rich and flavorful dish.
- Garlic Bread: The perfect crunchy pairing; its buttery goodness contrasts beautifully with the creamy pasta for a comforting meal.
- Simple Arugula Salad: A vibrant, peppery salad adds freshness and balances the richness of the penne. Toss with lemon vinaigrette for a zingy touch.
- Roasted Vegetables: Roasted carrots and zucchini bring out earthy flavors, adding a delightful texture and color that complements the dish beautifully.
- Classic Bruschetta: The tomato and basil topping on toasted bread provides a fresh burst of flavor, making it a welcome starter before the pasta takes center stage.
- Wine Pairing: A glass of crisp Pinot Grigio or refreshing Sauvignon Blanc plays perfectly with the walnut pesto’s nutty flavors.
- Lemon Sorbet: Light and refreshing, this dessert cleanses the palate after the hearty meal, leaving you feeling delightful and satisfied.
- Stuffed Mushrooms: Echoing the main dish’s flavors, these bite-sized treats are a delicious starter or side that enhances the mushroom experience.
Simple Mushroom Penne with Walnut Pesto Variations
Feel like mixing it up? Here are some delightful twists to customize your dish and cater to your taste buds!
- Nut-Free: Replace walnuts with pumpkin seeds for a lighter, yet equally satisfying flavor in your pesto.
- Vegan Delight: Omit Parmesan cheese and use nutritional yeast in the pesto for a cheesy flavor without dairy.
- Add Greens: Toss in fresh spinach or arugula just before serving for a pop of color and extra nutrients.
- Flavor Boost: A pinch of red pepper flakes can add a kick of heat, perfect for those who love a bit of spice.
- Creamy Touch: Stir in a bit of heavy cream or coconut cream to the pasta before serving for a rich, creamy texture.
- Egg-Lover’s Twist: Place a poached egg on top for a burst of richness that complements the earthy flavors beautifully.
- Tomato Burst: Roast cherry tomatoes and mix them in for a sweet, juicy contrast to the creamy pesto.
- Whole Grain Goodness: Opt for whole wheat penne to add fiber while enhancing the nutty flavor of the dish.
These variations not only inspire creativity in the kitchen but also align perfectly with the comforting essence of your Simple Mushroom Penne with Walnut Pesto. For more delectable pasta ideas, consider trying Chicken Buttered Noodles or savor the delightful harmony of flavors in Chicken Pillows Parmesan. Enjoy your culinary adventure!
Expert Tips for Simple Mushroom Penne with Walnut Pesto
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Select Fresh Mushrooms: Always choose firm, fresh mushrooms for the best flavor. Avoid limp or discolored ones, as they can affect the taste and texture of your dish.
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Don’t Overcrowd the Pan: When sautéing mushrooms, give them space in the pan. Overcrowding can trap steam, preventing delicious browning, which is essential for enhancing the flavor.
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Quality Ingredients Matter: Use high-quality walnuts and butter for the walnut pesto. The better the ingredients, the richer and more vibrant the flavors in your Simple Mushroom Penne.
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Adjust Consistency Wisely: Keep some reserved pasta water handy. If your dish looks too dry after combining, add a little pasta water until you reach the desired creamy texture.
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Taste as You Cook: Season gradually and taste frequently. This way, you can tailor the seasoning of your Simple Mushroom Penne with Walnut Pesto to suit your palate perfectly.

Simple Mushroom Penne with Walnut Pesto Recipe FAQs
How do I choose the right mushrooms for my dish?
Absolutely! When selecting mushrooms, look for firm, plump ones that are free from dark spots or blemishes. Baby bellas or white mushrooms work best for this dish, bringing out that rich umami flavor. Give them a gentle squeeze; they should feel slightly springy and not too soft.
What’s the best way to store leftovers?
Very! Make sure to store your Simple Mushroom Penne with Walnut Pesto in an airtight container in your refrigerator for up to 3 days. It’s best to let the dish cool completely before sealing it to avoid excess moisture and sogginess. This way, you can enjoy it later without sacrificing flavor!
Can I freeze this dish? If so, how?
Yes, you can! To freeze your Simple Mushroom Penne with Walnut Pesto, place individual portions in freezer-safe containers, leaving a bit of space at the top for expansion. It can stay fresh for up to 2 months in the freezer. When you’re ready to enjoy it again, simply thaw it in the refrigerator overnight and reheat gently on the stovetop or microwave, adding a splash of water or olive oil to keep it moist.
What if my walnut pesto turns out too thick?
No worries! If your walnut pesto is thicker than desired, simply add a tablespoon of olive oil or a splash of water while blending to achieve your preferred consistency. Blend further until smooth. The taste should remain rich and nutty, beautifully complementing your Simple Mushroom Penne.
Are there any dietary considerations for this recipe?
Absolutely! For those with nut allergies, you can substitute walnuts with sunflower seeds or pumpkin seeds to create a similar texture and taste for your pesto. Additionally, if you’re looking for a vegan version, opt for olive oil in place of butter and use nutritional yeast instead of Parmesan cheese. Always check ingredient labels to ensure they meet your dietary needs!
How long can I keep the cooked dish in the fridge?
You can keep your Simple Mushroom Penne with Walnut Pesto in the fridge for up to 3 days. Just ensure it’s stored in an airtight container to maintain freshness. When reheating, add a splash of water or olive oil to keep the texture creamy and delicious!

Savor Every Bite of Simple Mushroom Penne with Walnut Pesto
Ingredients
Equipment
Method
- Bring a large pot of salted water to a boil. Add penne pasta and cook according to package directions, about 8-10 minutes, until al dente. Drain and set aside, keeping a little pasta water.
- In a large skillet, melt 2 tablespoons of butter over medium heat. Add 2 minced garlic cloves and sauté for about 1 minute. Toss in 8 ounces of sliced mushrooms, cooking for 5-7 minutes until golden brown.
- In a food processor, combine 1 cup of walnuts, 2 cloves of garlic, and 1/2 cup of grated Parmesan cheese. Blend while slowly drizzling in 1/2 cup of olive oil until creamy. Season with salt to taste.
- Add the cooked penne to the skillet with mushrooms. Pour in walnut pesto and gently toss until well-coated. Add pasta water if the mixture seems dry.
- Plate in warm bowls, garnishing with additional Parmesan or a poached egg if desired. Serve immediately.

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