Transform your weeknight dinners with our incredibly easy and delicious Instant Pot Mushrooms and Onions! In just 10 minutes, you can create a perfectly tender, buttery, and savory vegetable side dish that complements chicken, beef, or any main course. This recipe promises flawless results every time, turning even mushroom skeptics into fans with its rich flavor and delightful texture.
The magic of the Instant Pot truly shines with this recipe. We recently whipped up these Instant Pot mushrooms and onions alongside a chicken dinner, and the results were so outstanding, we knew we had to share this simple yet incredibly flavorful method with you. Prepare to be amazed by how quickly and easily you can elevate your meals!
Why the Instant Pot for Mushrooms? Speed, Flavor, and Perfect Texture
Even if you’ve never been a huge fan of mushrooms, this preparation method might just change your mind. The pressure cooker, whether it’s an Instant Pot, a Ninja Foodi (using its pressure cooking lid), or a Crockpot Express, is uniquely suited for cooking mushrooms. It tenderizes them quickly while infusing them with deep, rich flavors, far surpassing traditional stovetop sautéing or boiling methods.
You’re aiming for mushrooms that are buttery, tender, and intensely savory in every bite. While you can use various types of mushrooms, such as white button or even canned varieties, we highly recommend baby bella mushrooms for their superior texture and deeper, earthier flavor profile. They hold up beautifully under pressure, resulting in a more satisfying bite. We encourage you to try them and experience the difference!
For those new to the world of pressure cooking, the Instant Pot opens up a universe of quick and easy one-pot meals. To help you get started, here are a few essential tips:
- Make sure to bookmark our comprehensive Instant Pot recipes page. We continuously update it with new and exciting dishes every week!
- Download and print our handy Instant Pot cooking times cheat sheet. This invaluable resource will guide you on the ideal cooking durations for meats, vegetables, and beans in your pressure cooker.
- We highly recommend investing in a non-stick inner pot for your Instant Pot. This significantly reduces the chances of food sticking, especially during the sautéing phase, making cleanup a breeze.
- While it’s good to know how to deglaze a pressure cooker after sautéing, a quality non-stick liner will minimize this need, saving you time and effort.
For context, the model we use for all our recipe creations is a 6-quart Instant Pot, chosen for its versatility and consistent performance.
This Instant Pot mushroom recipe was one of those serendipitous culinary experiments – a combination of “this would be good,” “I have these ingredients,” and “let’s give this a try.” Not all experiments yield perfect results on the first attempt, but this one certainly did! It has quickly become one of our most beloved Instant Pot vegetable side dishes.
Essential Ingredient Notes for the Best Instant Pot Mushrooms
Achieving the best results starts with the right ingredients. Here’s a closer look at what you’ll need:
- Baby Bella Mushrooms: As mentioned, these are our top recommendation. Their firmer texture and richer, more earthy flavor stand up exceptionally well to pressure cooking, preventing them from becoming mushy. They’re also fantastic in other dishes, such as our Instant Pot Cream of Mushroom Rice. If you happen to have any leftover, be sure to incorporate them into this recipe!
- Onions: Diced yellow onions are our go-to for this recipe. Their mild sweetness and aromatic qualities perfectly complement the savory mushrooms, creating a delightful flavor duo.
- Butter: For sautéing and adding that rich, irresistible flavor, salted Kerrygold butter is our preferred choice. The quality of the butter makes a noticeable difference. You can certainly use olive oil for a dairy-free option, but butter truly enhances the overall taste. If using unsalted butter or a dairy-free alternative, remember to add an extra pinch of salt to balance the flavors.
- Broth: A good quality broth is essential for providing the liquid needed for pressure cooking and for infusing the mushrooms with additional depth of flavor. Vegetable or chicken broth both work wonderfully.
- Seasonings: Simple yet powerful, a combination of minced garlic and garlic salt is all it takes to bring out the best in your mushrooms. Adjust to your taste, always remembering you can add more at the end.
Baby bella mushrooms, also known as cremini mushrooms, typically retail at a similar price point to the more common white button mushrooms. We frequently use them in various recipes, from air fryer stuffed mushrooms to our general air fryer vegetables, because their robust structure ensures they maintain their integrity and don’t fall apart easily during cooking.
Preparing Your Mushrooms: Whole or Sliced?
To ensure our Instant Pot mushrooms retain a satisfyingly firm texture, we opt not to slice or halve them. Keeping them whole allows them to better absorb the delicious flavors from the butter, garlic, and broth without becoming overly soft. The larger they are, the more structure they maintain, and the more time they have to soak up all those incredible seasonings. When it comes to seasoning, we always recommend starting with a lighter hand and tasting the finished dish. It’s much easier to add more salt and pepper at the end than to try and salvage an over-seasoned dish. Seriously, mastering pressure cooking has been a game-changer in our kitchen!
Baby Bellas vs. White Mushrooms: Which is Best for Pressure Cooking?
While you can generally substitute white button mushrooms for baby bellas in many recipes, there’s a good reason why we advocate for baby bellas in the Instant Pot. Under high pressure, white button mushrooms tend to release more water and can become significantly softer, sometimes even mushy. Baby bellas, with their denser texture, stand up better to the intensity of pressure cooking, maintaining a more desirable bite. If white button mushrooms are all you have on hand, we suggest reducing the pressure cooking time by half to prevent them from becoming too soft.
How Long to Cook Mushrooms in the Instant Pot for Perfect Results
One of the greatest advantages of using an Instant Pot is the speed. Under high pressure, fresh mushrooms cook incredibly fast. The actual cooking time for the mushrooms themselves is only 5 minutes. However, it’s important to factor in the time your Instant Pot takes to come to pressure, which can vary depending on the amount of liquid and the starting temperature of the ingredients. Even with this additional time, the overall process is significantly quicker and often more hands-off than traditional stovetop methods, which might take longer, or oven roasting.
Step-by-Step Guide: How to Cook Mushrooms in a Pressure Cooker
Time needed: 9 minutes (approximate, including pressure build-up)
Achieve perfectly pressure-cooked mushrooms with this simple method.
- Sauté Aromatics: Set your Instant Pot to the “Sauté” function. Add butter, minced garlic, and diced onions. Allow the butter to melt and the onions to soften, becoming translucent and fragrant, which typically takes about 2-3 minutes. This step is crucial for building a flavorful base.
- Clean and Prepare Mushrooms: While the aromatics are sautéing, gently clean your mushrooms. Avoid soaking them, as they absorb water easily. Instead, use a damp paper towel to wipe off any visible dirt from the caps and stems, or quickly rinse them under a slow stream of cold water. Place them on several layers of paper towels and gently roll to ensure they are thoroughly dry. This prevents them from becoming waterlogged during cooking.
- Briefly Sauté Mushrooms: Add the cleaned mushrooms into the pot with the softened onions and garlic. Sauté for another 3-4 minutes, stirring frequently but gently, just until they begin to soften slightly and release some of their moisture. This helps to develop a deeper flavor. Turn the Instant Pot off after this step.
- Pressure Cook: Pour in the broth. Close the lid of your Instant Pot, ensuring it’s sealed correctly, and set the steam release valve to the “Sealing” position. Set the Instant Pot to “High Pressure” for 5 minutes. Once the cooking cycle is complete, perform a quick release of the pressure by carefully turning the valve to “Venting.”
- Serve and Enjoy: Once the pressure has fully released and the float valve drops, open the lid. Use a slotted spoon to lift out the tender, sautéed mushrooms, allowing any excess liquid to drain back into the pot. You can leave any remaining mushrooms in the delicious butter sauce in the pot until ready to serve. Garnish with fresh herbs or a sprinkle of Parmesan cheese if desired.
When serving from the Instant Pot, we always opt for wooden or silicone utensils to protect the inner pot’s surface. A slotted spoon is particularly useful for lifting out the mushrooms while leaving the flavorful broth behind, perfect for drizzling over your main dish.
Can You Cook Canned Mushrooms in a Pressure Cooker?
While technically possible, cooking canned mushrooms in a pressure cooker isn’t typically necessary or recommended. Canned mushrooms are already very soft and pre-cooked, essentially needing only to be warmed through. A quick 30-second microwave session or simply sautéing them for a couple of minutes on the stovetop is usually sufficient. If you insist on using your Instant Pot, we suggest skipping the pressure cooking step entirely. Instead, drain the canned mushrooms, add them to the pot with the sautéed onions and garlic, and use only the “Sauté” function to warm them through and allow them to absorb the flavors, similar to the initial steps of our recipe.
What you’ll ultimately achieve with this Instant Pot method are perfectly cooked, flavorful sautéed mushrooms, but with minimal effort. Our preference for this technique stems from its hands-off nature. Unlike standing over a stovetop for 15 minutes, constantly stirring to prevent boiled mushrooms or unevenly sautéed ones, the Instant Pot allows you to simply add your ingredients, set the pressure, and walk away. The result is consistently tender mushrooms bathed in a rich, buttery garlic sauce.
If you’re looking to double this recipe for a larger gathering, you can use the same cooking time. The key to mushroom texture lies in the cooking duration: if you prefer them softer, you can add an extra minute or two, though for us, 5 minutes on high pressure yields a perfect, not-mushy texture.
Instant Pot Mushrooms Recipe
Print Recipe
Equipment
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1 pressure cooker
Ingredients
- 16 oz mushrooms, baby bellas are best
- 1/4 cup butter
- 1/2 small onion, diced
- 1 tbsp minced garlic
- 1/4 tsp garlic salt
- 3/4 cup broth
Instructions
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Set pot to sauté, add butter, garlic, and onions. Cook until onions soften and become fragrant.
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Gently rinse and dry your mushrooms with a paper towel. Add them into your pot. Stir gently and cook for 3-4 minutes until slightly softened. Turn the pot off.
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Add the broth, then securely close the lid and set the steam release valve to the sealing position.
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Set the Instant Pot to High Pressure for 5 minutes. Once cooking is complete, perform a quick release of the pressure.
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Open the lid carefully. Use a slotted spoon to serve the mushrooms, topping with Parmesan cheese and a sprinkle of additional salt and pepper to taste.
Video
Nutrition
Calories: 90kcal,
Carbohydrates: 4g,
Protein: 3g,
Fat: 8g,
Saturated Fat: 5g,
Cholesterol: 20mg,
Sodium: 286mg,
Potassium: 254mg,
Fiber: 1g,
Sugar: 2g,
Vitamin A: 299IU,
Vitamin C: 2mg,
Calcium: 7mg,
Iron: 1mg
Nutrition information is automatically calculated, so should only be used as an approximation.
Additional Info
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FAQ: Frequently Asked Questions About Instant Pot Mushrooms
The primary difference lies in their maturity and characteristics. White button mushrooms are harvested at an earlier stage, resulting in a lighter color and a softer texture, especially when cooked. Baby bella mushrooms, also known as cremini, are a more mature version of the same species. They have a deeper brown color, a firmer texture, and a more robust, earthy flavor. This makes them ideal for pressure cooking as they hold their shape better and offer a more satisfying bite.
This is a common question with varying opinions! The goal is to remove dirt without saturating the mushrooms, as they act like sponges. We recommend two gentle methods: either use a slightly damp paper towel to wipe away any visible dirt from the caps and stems, or give them a very quick rinse under a slow stream of cold water. After rinsing, immediately place them on several layers of paper towels and gently roll them to absorb any surface moisture. Avoid prolonged soaking.
Most mushrooms are nutritious and a healthy addition to your diet, especially when prepared with minimal added fats and sodium. Generally, oyster and shiitake mushrooms tend to be higher in fiber. Portobello mushrooms are notably rich in Vitamin D, especially if they’ve been exposed to UV light. The best approach is to enjoy a variety of mushrooms for a broad range of nutrients.
Absolutely! The stems of baby bella (cremini) mushrooms are perfectly edible and delicious. Once you’ve cleaned off any dirt, you can cook them whole with the caps. Some recipes might call for removing stems for aesthetic reasons or to stuff the caps, but for this Instant Pot recipe, keeping them intact adds to the texture and volume.
While the Instant Pot can certainly steam vegetables, for mushrooms, we find a combination of sautéing and pressure cooking in a flavorful sauce yields far superior results. Directly steaming them can leave them a bit bland and watery. Our method infuses them with rich butter, garlic, and onion flavors while achieving a tender yet firm texture – it’s a difference you can truly taste!
Explore More Instant Pot Vegetable Recipes You’ll Love
Once you’ve mastered these incredibly easy Instant Pot mushrooms, be sure to expand your pressure cooking repertoire! Don’t forget to print our comprehensive Instant Pot vegetable cook times sheet, which will help you prepare a wide array of veggies perfectly every time. Our pressure cooker green beans are another family favorite, especially loved by our daughters as a go-to side dish. And for those who enjoy variety, our air fryer green beans offer a crispy alternative that’s a close second in popularity!
