How Long To Bake Portobello Mushroom At 350 Degrees In Oven?

If you’re thinking of a way to celebrate a party the healthy way, baked portobello mushrooms are the way to go! Whether serving it as an appetizer or a side dish or even filling it and serving it as a vegan main course, you can do anything and everything with portobello mushrooms! Not only are they versatile, but they are very delicious and heavenly, so you’ll even forget they’re vegetables in the first place! Maybe, even mushroom haters will become mushroom lovers after trying some portobellos! The portobello mushroom cooking temperature and timing are key for the best result. One common question is this. How long to bake portobello mushroom at 350 degrees in the oven? Let’s talk about this and other tips on perfecting the baked stuffed portobello mushrooms recipe.

How Long To Bake Portobello Mushroom At 350 Degrees In Oven?

Baking portobello mushrooms at 350 degrees F in the oven would take around 25-30 minutes! You’d know they’re done once they’re tender. While 350 degrees won’t hurt your mushrooms so much, it’s better to raise the oven temperature and cook mushrooms at higher temp because mushrooms are full of water! The high temperature will get rid of all the water inside the mushrooms. The lower temps, on the other hand, just let the mushroom simmer in its liquid. So, it’s best to cook portobello mushrooms at around a 400-degree temperature and let them cook for only around 15-20 minutes!

How to cook Portobello Mushrooms in the oven?

Portobello mushrooms are pretty easy to prepare! And there are plenty of stuffed portobello mushrooms recipes online. However, there’s this one easy portobello mushrooms recipe which I like a lot. Here’s how to cook portobello mushrooms in the oven.

1. Clean portobello mushrooms

First, you have to clean your portobello mushroom by wiping them with a damp towel. It’s better to do it this way than directly running it in water because the water would make your mushrooms even mushier, which wouldn’t produce a good result.

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2 Add seasoning to portobello mushrooms

Then, simply brush the insides and outsides of your portobello mushrooms with a seasoning mix of olive oil, salt, pepper, some garlic powder, thyme, and rosemary. Let the portobello mushrooms sit in the marinade for around 20 minutes.

3 Bake

Then pop them in the oven for 10 minutes at 400 degrees until the mushrooms have a nice brown to them.

4 Stuff portobello mushrooms with stuffings

If you want to add a little more dazzle and to make your dish fuller, after 10 minutes, stuff the portobello mushroom with mozzarella and parmesan cheese and pop them back in the oven for 5 minutes just to let the cheese melt into some cheesy, savory goodness. See? That’s quite easy!

What is another good way to cook Portobello Mushrooms?

Pan-sear or sautee the portobello mushrooms

Instead of baking and keeping your mushrooms whole, you can also try to cut your mushrooms into smaller pieces and simply sautee them on a pan. This is also very easy and much quicker, you’ll need only 10 minutes at most!

Grill the portobello mushrooms

You can also roast or grill your mushrooms which are practically the same. Just season your mushrooms the same way (or change it up a bit with balsamic vinegar, oil, salt, and garlic), then cook the portobello mushrooms on the grill for 5 minutes on each side. Then, all that’s left is to serve and enjoy the roasted portobello mushrooms!

How to bake Portobello Mushrooms in oven fast?

You just can’t go wrong with portobello mushrooms! Not only are they very scrumptious, but they’re also really healthy for your body too! And, I simply can’t wait to try some mushrooms later. My tummy is already grumbling just thinking about mushrooms. And maybe, some of your guests would feel the same too. Even if mushrooms are pretty fast to make, if you ever need to double time and cook your mushrooms faster, here are ways you can quicken the process!

Soften your portobello mushrooms

A few hours before your guests arrive and before your party starts, you can soften your mushrooms ahead by letting them simmer in some salt and water mixture for a few minutes! So, it won’t take so much time to soften when you start to bake them.

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Skip marinade time

Mushrooms absorb seasoning pretty well! So, if you’re in a hurry, it won’t hurt to skip the 20-minute marinade time for the portobello mushrooms, and you can just pop them right in the oven after seasoning them.

What goes with Portobello Mushrooms?

Portobello mushrooms are just yummy! It’s always a delight to have something new, and something healthy! While portobello mushrooms are already amazing in themselves, why not take it up another level? Here’s how you can portobell-woah your guests even more with your portobello!

Stuff the portobello mushrooms with different stuffings

One way to level up your baked portobello mushrooms is to change up your stuffing instead of just plain cheese. Some great ideas for stuffing for portobello mushrooms include tomatoes and feta cheese, bacon and cheddar!

Pair portobello mushrooms with steak or veggies

If you’re serving mushrooms as appetizers or side dishes, you can pair them with some steak or other meats! If it’s your main course, try serving them with broccoli and cauliflower salad, or other greens would go great too!

Try portobello mushroom burgers

You can use your baked mushrooms as the patty of your burgers! Serve your mushrooms as burgers with some tomatoes, basil, and cheese and you’re going to be so amazed.


That’s everything you need to know about portobello! Mmm..portobello mushrooms are just always great. No matter the occasion or the place, you can never go wrong with portobello mushrooms. I hope this can help you prepare your roasted portobello mushrooms to portobello perfection and that your parties will always be fun, enjoyable, healthy, and just heavenly delicious. Enjoy your portobellos!

FAQs on oven baked portobello mushrooms

How to wash portobello mushrooms?

It’s better to clean your portobello mushrooms by wiping them with a damp towel. Directly washing the portobello mushrooms in water is not a good idea as the water would make your mushrooms even mushier.