Meaty, juicy, savory, and crunchy, this portobello mushroom sandwich can be enjoyed by vegetarians and meat-eaters alike. Hearty portobello mushrooms are sauteed and topped with smashed avocado and a zippy ranch slaw. Satisfy your burger cravings in just 30 minutes with this healthy and delicious alternative.
Working in two batches, sprinkle 2 mushrooms with a pinch of salt and place into skillet. Cook 4-5 minutes, then flip over and cook for an additional 5 minutes, until the mushrooms are firm-tender. Repeat with the remaining 2 mushrooms.
Meanwhile, in a medium bowl, whisk together mayonnaise, buttermilk, vinegar, dill, parsley, chives, onion powder, garlic powder, and salt. Add shredded carrots and cabbage and stir until both are completely covered in sauce.
To assemble sandwiches, smash ¼ of avocado (if using) on top half of a hamburger bun. Place cooked mushroom on bottom half of bun and add a generous scoop of the slaw on top. Serve immediately.
Wipe mushrooms clean. Be sure to use a dry towel or paper towel to clean your mushrooms. Do not wash with water, as this will turn the mushrooms soft and mushy.
Top Tips
MEET MARYANNE 👋
I create easy recipes that are mainly vegetarian and vegan. And I have a huge sweet tooth, so dessert is never far behind! Sign up to get recipes delivered to your inbox and get my FREE Guide on Money Saving Tips on Buying Groceries!