I love how simple and tasty this portobello mushrooms recipe is. It’s one of those dishes that feels fancy but takes just a little time to make. I hope you enjoy making it as much as I do!
Most of the ingredients in this recipe are easy to find in your kitchen or local store. Portobello mushrooms might be new if you haven’t cooked with them before—they are large, meaty mushrooms that add great flavor. If you go to the supermarket, look for fresh mushrooms that are firm and not too wet. Dried thyme is a common herb but if you don’t have it, fresh thyme works too.

Ingredients For Portobello Mushrooms Recipe
Portobello mushrooms: Large, meaty mushrooms that are perfect for baking and have a rich, earthy flavor.
Olive oil: A healthy oil that helps keep the mushrooms moist and adds a smooth taste.
Garlic: Adds a strong, savory flavor that pairs well with mushrooms.
Dried thyme: A herb that gives a subtle, slightly minty and lemony flavor.
Salt and pepper: Basic seasonings that bring out the flavors of all the ingredients.
Technique Tip for This Recipe
One helpful trick in this Portobello Mushrooms Recipe is how to clean the mushrooms and remove their stems. This step might seem small, but it really makes a difference in how your dish turns out. Here’s how you can do it:
- Take a damp paper towel or a soft brush and gently wipe the surface of each mushroom to remove any dirt. Avoid soaking them in water because mushrooms act like little sponges and can get soggy.
- Hold the mushroom steady with one hand and use a small knife to carefully twist and pull out the stem. The stem is usually tougher and can be a bit woody, so it’s better to take it out.
- If you want, you can save the stems for another recipe, like making soup or stock.
Doing this makes your mushrooms cook more evenly and helps the flavors from the olive oil, garlic, and thyme soak in better. Plus, it stops the dish from getting too chewy or tough, which can happen if you leave the stems in.
When I first tried this, I didn’t remove the stems and ended up with some bites that were a little hard to chew. After I started taking them out, the mushrooms were so much softer and tastier. Also, wiping them clean instead of washing keeps them from getting soggy, which means they roast nicely in the oven and get that perfect texture.
Give this a try next time you cook Portobello mushrooms—it’s a simple step that really makes a difference!
Suggested Side Dishes
Alternative Ingredients
portobello mushrooms - Substitute with cremini mushrooms: Cremini mushrooms have a similar texture and flavor profile, making them a good alternative.
portobello mushrooms - Substitute with shiitake mushrooms: Shiitake mushrooms offer a rich, umami flavor that can complement many dishes similarly to portobello mushrooms.
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a mild flavor, making it a suitable replacement for olive oil in cooking.
olive oil - Substitute with grapeseed oil: Grapeseed oil is neutral in flavor and can be used in place of olive oil for sautéing and roasting.
garlic - Substitute with shallots: Shallots provide a milder, slightly sweet flavor that can replace garlic in many recipes.
garlic - Substitute with garlic powder: Garlic powder can be used as a convenient alternative to fresh garlic, though it is less pungent.
dried thyme - Substitute with dried oregano: Dried oregano has a robust flavor that can stand in for thyme in many dishes.
dried thyme - Substitute with dried rosemary: Dried rosemary offers a similar earthy, aromatic quality that can replace thyme.
salt - Substitute with soy sauce: Soy sauce can add a salty, umami flavor to dishes, serving as a substitute for salt.
pepper - Substitute with cayenne pepper: Cayenne pepper can add a spicy kick in place of black pepper, though it is much hotter.
pepper - Substitute with white pepper: White pepper provides a similar heat and flavor profile, making it a good alternative to black pepper.
Alternative Recipes Similar to This Dish
How to Store or Freeze This Recipe
- Allow the portobello mushrooms to cool completely before storing. This prevents condensation, which can make them soggy.
- Place the mushrooms in an airtight container or a resealable plastic bag. If using a bag, try to remove as much air as possible to maintain freshness.
- Store the container or bag in the refrigerator. The mushrooms should stay fresh for up to 3-4 days.
- For longer storage, consider freezing the mushrooms. First, place them on a baking sheet in a single layer and freeze until solid. This prevents them from sticking together.
- Once frozen, transfer the mushrooms to a freezer-safe bag or container. Label with the date to keep track of freshness.
- When ready to use, thaw the mushrooms in the refrigerator overnight. Reheat in the oven at 350°F (175°C) for about 10 minutes or until warmed through.
- For an extra burst of flavor, consider reheating the mushrooms with a drizzle of olive oil and a sprinkle of dried thyme.
- Avoid microwaving the mushrooms as it can make them rubbery. Instead, opt for oven reheating to maintain their texture and taste.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the leftover portobello mushrooms on a baking sheet. Cover them with aluminum foil to retain moisture. Heat for about 10-15 minutes or until warmed through. This method helps maintain the texture and flavor of the mushrooms.
Stovetop Method: Heat a skillet over medium heat and add a small amount of olive oil. Place the portobello mushrooms in the skillet and cover with a lid. Cook for about 5-7 minutes, flipping halfway through, until they are heated evenly. This method gives a slightly crispy exterior while keeping the inside juicy.
Microwave Method: Place the portobello mushrooms on a microwave-safe plate. Cover them with a damp paper towel to prevent drying out. Microwave on medium power for 1-2 minutes, checking halfway through. This is the quickest method but may slightly alter the texture.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the portobello mushrooms in the air fryer basket in a single layer. Heat for about 5-7 minutes, shaking the basket halfway through. This method gives a nice, crispy finish to the mushrooms.
Grill Method: Preheat your grill to medium heat. Place the portobello mushrooms on the grill and cover. Grill for about 3-5 minutes on each side, or until heated through. This method adds a smoky flavor and keeps the mushrooms juicy.
Best Tools for This Recipe
Oven: Used to preheat to 400°F (200°C) and bake the portobello mushrooms to perfection.
Baking sheet: Provides a flat surface to place the mushrooms on for even baking.
Small bowl: Ideal for mixing the olive oil, minced garlic, and dried thyme together.
Basting brush: Helps to evenly coat the mushrooms with the olive oil mixture.
Knife: Used to mince the garlic and remove the stems from the portobello mushrooms.
Cutting board: Provides a safe and clean surface to prepare the mushrooms and garlic.
Measuring spoons: Ensures accurate measurement of olive oil, dried thyme, salt, and pepper.
Tongs: Handy for flipping the mushrooms if needed and for serving them hot.
How to Save Time on This Recipe
Pre-mix the marinade: Combine the olive oil, minced garlic, and dried thyme ahead of time and store in the fridge. This saves you a step when you're ready to cook.
Use pre-minced garlic: Opt for pre-minced garlic from the store to cut down on prep time.
Line the baking sheet: Use parchment paper or a silicone baking mat to make cleanup quicker and easier.
Batch clean mushrooms: Clean and remove the stems from the portobello mushrooms in one go, rather than individually.
Preheat the oven early: Start preheating your oven before you begin prepping the ingredients to save waiting time.

Portobello Mushrooms Recipe
Ingredients
Main Ingredients
- 4 large portobello mushrooms
- 2 tablespoon olive oil
- 2 cloves garlic, minced
- 1 teaspoon dried thyme
- to taste salt and pepper
Instructions
- Preheat your oven to 400°F (200°C).
- Clean the portobello mushrooms and remove the stems.
- In a small bowl, mix the olive oil, minced garlic, and dried thyme.
- Brush the mixture onto both sides of the mushrooms. Season with salt and pepper.
- Place the mushrooms on a baking sheet, gill side up, and bake for 20 minutes.
- Serve hot and enjoy!
Nutritional Value
Keywords
Suggested Appetizers and Desserts
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