Ready to bring the sizzle of your favorite restaurant to your own backyard? These Grilled Portobello Fajitas are an absolute game-changer! We’re talking meaty portobello mushrooms, sweet bell peppers, and zesty red onion, all kissed by the grill for that incredible smoky char. Piled high on a warm tortilla with a creamy, garlicky avocado mash, this is the fresh, vibrant, and satisfying meal you’ve been craving. Let’s get grilling!
Ingredients
• For the Avocado Mash
• 1 small avocado, about 150g, halved, seeded, and peeled
• 1 tablespoon / 15 ml lime juice
• 1 clove garlic, minced
• For the Spice Rub
• 1⁄2 teaspoon / 2.5g ground cumin
• 1⁄2 teaspoon / 1g dried oregano, crushed
• 1⁄4 teaspoon / 1.5g salt
• 1⁄8 teaspoon / 0.5g ground black pepper
• For the Fajitas
• 3 small fresh portobello mushrooms, about 225g, stems and gills removed
• 2 medium sweet peppers, red, yellow, or green, halved and seeded
• 1⁄2 medium red onion, cut into 1⁄2-inch / 1.25 cm thick slices
• Nonstick cooking spray
• 4 7- to 8-inch / 18-20 cm whole wheat flour tortillas
• Lime wedges, for serving (optional)
Instructions
1. First, prepare the avocado mash. In a small bowl, mash the avocado with a fork until it’s nearly smooth. Stir in the lime juice and minced garlic. Press a piece of plastic wrap directly onto the surface of the mixture to prevent browning and chill in the refrigerator.
2. Next, create the spice rub. In another small bowl, combine the cumin, oregano, salt, and black pepper. Lightly coat the portobello mushrooms, sweet pepper halves, and red onion slices with nonstick cooking spray, then sprinkle the spice rub evenly over all sides of the vegetables.
3. Preheat your grill to medium heat. Place the seasoned vegetables directly on the grill rack. Grill until crisp-tender, turning once. The peppers will take about 8-10 minutes, the mushrooms 10-15 minutes, and the onions 15-20 minutes. Remove each vegetable from the grill as it finishes cooking.
4. Once the vegetables are off the grill, place the tortillas on the rack for 20-40 seconds per side, just until they are warm and have light grill marks. Remove them and wrap in a clean towel to keep warm. Thinly slice the grilled mushrooms and sweet peppers, and coarsely chop the onion.
5. Time to assemble! Spread a generous layer of the chilled avocado mixture onto each warm tortilla. Top with the sliced grilled vegetables, fold, and serve immediately. Offer extra lime wedges on the side for a fresh squeeze of citrus.
Nutritional Information
• Per Serving
• Calories: 233
• Total Fat: 10 g
• Saturated Fat: 2 g
• Cholesterol: 0 mg
• Sodium: 475 mg
• Carbohydrates: 26 g
• Fiber: 15 g
• Protein: 11 g
Pro Tips
• For the creamiest mash, use a perfectly ripe avocado. It should yield slightly to gentle pressure but not feel mushy.
• Don’t overcrowd the grill. Cook the vegetables in batches if necessary to ensure they get a beautiful char instead of steaming.
• For extra flavor, marinate the portobello mushrooms in a splash of soy sauce and lime juice for 15-20 minutes before applying the dry rub.
• To easily remove portobello gills, gently scrape them out with a spoon before seasoning and grilling.
FAQ
Q: Are these portobello fajitas a good source of protein
A: Portobello mushrooms provide a wonderfully meaty texture and some plant-based protein, complemented by the protein in the whole wheat tortillas. To easily boost the protein content and make the meal even more filling, consider adding a cup of grilled black beans or pinto beans to your fajita filling.
Q: How can I make these grilled portobello fajitas vegan
A: This recipe is naturally almost vegan. The grilled vegetables, spice rub, and avocado mash are all 100% plant-based. The only ingredient to double-check is your whole wheat tortillas, as some brands may contain dairy or lard. Simply choose a certified vegan tortilla to ensure the entire dish is vegan.
Q: What other vegetables can I use for these grilled fajitas
A: Absolutely. This recipe is very flexible. Feel free to substitute or add other grill-friendly vegetables like zucchini, yellow squash, or poblano peppers for a bit of extra heat. Just adjust grilling times accordingly, as softer vegetables like zucchini will cook faster than the onions.
Q: How do I store and reheat leftover fajita vegetables
A: For best results, store the grilled vegetables separately from the tortillas and avocado mash in an airtight container in the refrigerator for up to 3 days. You can reheat the vegetables in a skillet over medium heat or in the microwave until warmed through. The avocado mash is best fresh but can be stored with plastic wrap pressed directly onto its surface to minimize browning.
