- VE
- VN
- LC
- LC
Portobello Mushroom Fajitas with Spiced Black Beans
These Portobello Mushroom Fajitas with Spiced Black Beans are a savory, vegetarian take on a classic favorite. Packed with bold flavors and colorful veggies, they’re an easy, delicious weeknight dinner!

Ingredients
Instructions
- Step 1
Preheat oven to 450 degrees F and line two large baking sheets with foil.
- Step 2
Mix together 3 tablespoons olive oil, 2 tablespoons fajita spice mix and juice of 1 lime in a large bowl. Add sliced mushrooms and toss to coat. Let marinade for 10 to 15 minutes, tossing occasionally.
- Step 3
Once marinated, divide mushrooms between two baking sheets. Add sliced peppers and onions to the marinade bowl with 1 tablespoon olive oil and 1 tablespoon fajita spice. Toss to combine and divide among sheet pans with mushrooms, spreading to a single layer.
- Step 4
Roast for 25 minutes, rotating pans halfway through.
- Step 5
Meanwhile, prepare the black beans by heating 1 tablespoon olive oil in a medium pot. Add Diced red onion, poblano and jalapeno and cook on medium-high heat for about 5 minutes.
- Step 6
Add minced garlic and spices, cooking 1 more minute. Add in black beans and broth, stirring and bringing to a boil. Once boiling, reduce heat to medium and continue cooking until liquid is cooked off, about 15 minutes.
- Step 7
Squeeze juice of ½ lime into beans and serve with Portobello Mushroom Fajitas and Whole30 compatible toppings of your choice – sliced avocado, sliced jalapenos, fresh cilantro and lime wedges.
Tips & Tricks
@pesto-potatoes
Hi, I’m Reed Dunn, the home cook, food blogger and photographer behind Pesto & Potatoes. This is where I share fresh, seasonal plant-based and pescatarian recipes to inspire you in the kitchen and make answering “what’s for dinner?” a little easier.
Per serving
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