We often host a sandwich night at my house, and tonight, I made a portobello mushroom sandwich. I love sandwiches! Not only do sandwiches taste great, but they are easy to make. When planning my portobello mushroom sandwich recipe, however, I added a lot of vegetables.

Although many people avoid bread, I reduce my bread carb load by removing the bread's center, creating a cavity to stack my veggies. Not only does it reduce the amount of bread, but it also makes a crusty bread that doesn't get soggy. And who likes a soggy sandwich? Not me!

Another great thing about making a stellar mushroom sandwich is the types of vegetables, and of course, the dressing is chosen to dress said sandwich. But, as you probably will agree, all sandwiches are not created equally.

For that reason, I consider this sandwich the best portobello mushroom sandwich I've made or eaten, for that matter.

What ingredients are in this stellar portobello mushroom sandwich?

Let's begin with the star of the sandwich, the portobello mushrooms. Unfortunately, I couldn't find large portobello mushrooms when I went shopping, so I opted for a 16-ounce medium container of portobello mushrooms.

Whole-Grain French Bread or Ciabatta (both are oil-free options) or bread of choice
Portobello Mushrooms
Green Zucchini
Summer Squash (yellow zucchini)
White Onion
Red Bell Pepper
Avocado
Tomato
Spinach
Vegan Southwest Dressing

Since the bread is the key to a fabulous sandwich, I always buy my bread in the bakery section. Believe it or not, most bread is oil-free and vegan. Most bread is made with flour, yeast, and water!

Choose your favorite bread from the bakery section and check the label. However, stay out of the processed bread aisle, as that is where you will find the bread with oil and preservatives.

Marinating the vegetables for a great mushroom and vegetable sandwich

To marinate the mushrooms and vegetables, use a mixture of balsamic vinegar and dijon mustard, and some Italian seasoning. Although I prefer grilled vegetables, I sauteed the mushrooms this time because I couldn't find large portobello mushrooms.

As a result, I marinated my mushrooms separate from the other vegetables and cooked the other vegetables on the grill. However, I suggest cutting the vegetables in similar sizes to cook equally on the grill.

Assembling the portobello mushroom sandwich (shown with a ciabatta here)

Once the mushrooms are sauteed, and the vegetables are grilled, I remove the center portion of both sides of the bread without trading through the top or bottom. Next, broil the bread, making it crispy before adding any cooked or raw vegetables.

The mushrooms go first as the sandwich's rock star, followed by the grilled zucchini, squash, onion, and red pepper. The other side of the bread is layered with Vegan Southwest Dressing, avocado, tomato, and spinach.

The magic or any sandwich or salad is always the sauce. For this particular sandwich, I chose my Vegan Southwest Dressing. For this recipe, all you need is some raw cashews, salsa, water, and lime juice blended in a high-speed blender.

But, if you don't like it spicy, consider trying these sauces for your portobello mushroom sandwich:

Regardless of your favorite sauce or dressing for a sandwich. We all know the sauce brings a sandwich together.

The question then remains; who is brave enough to eat this sandwich or bite into it? Me!

I'm not shy, nor do I pretend not to eat! On the contrary, I can eat a lot! And I attribute that to healthy eating. And, since I like to eat, I generally eat a lot. Now, it might take me a little longer to figure out how to eat this large sandwich, but I can eat just about anything with the right determination.

On the other hand, my husband admires my ability to eat pretty much as he does.

So, the next time you're craving a hearty sandwich, think about making a portobello mushroom sandwich full of veggies and dressed with your favorite dressing or sauce. And, whatever you do, don't forget the sauce.

And, if you're anything like me, you'll figure out how to eat this beautiful creation using one hand.

FAQs

What does a portobello mushroom taste like?

A portobello mushroom has an earthy and meaty taste, making it an excellent ingredient for burgers and sandwiches.

Is it alright to eat the gills of a portobello mushroom?

Not really. While the gills of a portobello mushroom are technically edible, they tend to make your food taste murky and nasty.

Do you love healthy vegan sandwiches? If so, we have you covered!

📖 Recipe

Kathy Carmichael

Hi! My name is Kathy, I am a retired high school English teacher & vegan enthusiast and blogger. My entire blog is fully plant-based vegan. I truly believe what we eat & how we live determines our health & the preservation of our planet! 🙂