

From the Cook
1/2
Instructions
1
Preheat oven to 450 degrees F and line two large baking sheets with foil.
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.
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.
4
Roast for 25 minutes, rotating pans halfway through.
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.
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.
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.
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Tips & Tricks (5)
- Gill Removal for Perfect Texture 🍄Scrape out the dark gills from portobello caps with a spoon before cooking to prevent excess moisture and achieve a firmer, meatier texture that holds up better during sautéing.
- Dry Mushrooms Before Cooking 🏜️Pat portobello caps completely dry with paper towels before slicing and cooking to ensure proper browning and caramelization rather than steaming.
- Bloom Your Spices in Oil 🌶️Toast the chili powder, smoked paprika, and cumin in hot olive oil for 30-60 seconds before adding vegetables to deepen their flavors and eliminate raw spice tastes.
- High-Heat Char for Flavor 🔥Cook mushrooms and peppers on high heat initially to develop a caramelized crust, which adds complexity and depth to your fajitas instead of steaming them at lower temperatures.
- Layer Your Lime Juice 🍋Add lime juice in two stages—half during cooking for acidity that brightens the spices, and the remaining half as a fresh finishing squeeze to preserve vibrant citrus notes.
Recipe Facts
Diet at a Glance
Vegetarian
Vegan
Low Carb
Low-Cholesterol
My Calorie Intake
Smart Nutrition 
Nutrition Per Serving
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Glycemic Analysis
Glycemic Index
Glycemic Load
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