Vegetable fajitas are the kind of dinner that feels like an event but takes about half an hour. Strips of bell pepper and wedges of red onion get tossed in chili powder and cumin, then grilled in a hot cast-iron skillet until they are tender and charred at the edges. A squeeze of lime over the top, a pile of warm tortillas on the side, and a spread of toppings on the table. Everyone builds their own. Dinner is done.
A good vegetable fajitas recipe starts with the cut. Bell peppers need to be sliced into strips and onion into wedges. The pieces should be roughly the same size so they cook evenly in the pan. Mushrooms add meatiness. A simple spice mix of chili powder, cumin, garlic, and salt coats everything before it hits the heat.
The slicing is the only real work. Three bell peppers and a red onion add up to a lot of cutting board time. A vegetable chopper with a slicing blade handles the peppers in about thirty seconds. The onion wedges take a few quick passes. Uniform cuts mean every piece chars at the same rate.
Ingredients
For the Fajita Vegetables:
· 3 multi-colored bell peppers, stemmed and sliced into strips
· 1 red onion, sliced into thick wedges
· 3 portobello mushrooms, stemmed and wiped clean
· 2 garlic cloves, minced
· 2 tablespoons avocado or vegetable oil
· ½ teaspoon chili powder
· ½ teaspoon ground cumin
· ½ teaspoon sea salt
· Freshly ground black pepper
· Splash of balsamic vinegar
· 2 limes, halved
For Serving:
· 8 small flour or corn tortillas, warmed
· Guacamole or sliced avocado
· Diced tomatoes or pico de gallo
· Pickled jalapeños
· Fresh cilantro
· Salsa
· Sour cream or Mexican crema
How to Make Vegetable Fajitas
Step 1: Season the Vegetables
Place a 12-inch cast-iron skillet on a grill over medium heat or on the stovetop over medium-high heat. While the pan heats up, arrange the bell pepper strips on a baking sheet. Place the onion wedges and whole mushroom caps on a separate plate.
In a small bowl, whisk together the oil, minced garlic, chili powder, cumin, salt, and a few grinds of black pepper. Drizzle about half of the seasoned oil over the peppers and toss to coat. Drizzle the remaining oil over the onions and mushrooms. Add a splash of balsamic vinegar to the mushrooms and rub it in so both sides are coated.
Step 2: Grill the Vegetables
If your cast-iron skillet is hot, add the pepper strips. Let them cook, tossing occasionally with tongs, until they are tender and charred in spots. This takes about 8 to 10 minutes. You want some blackened edges. That char is where the flavor lives.
While the peppers cook, place the onion wedges and mushroom caps directly on the grill grates or in a separate skillet. Cook for about 4 minutes per side, until the onions are softened and charred and the mushrooms are tender. Remove the mushrooms to a cutting board and slice them into thick strips.
Step 3: Finish and Serve
Squeeze half a lime over the peppers and toss them one more time. Season with a pinch more salt if needed. Pile the peppers, onions, and sliced mushrooms onto a serving platter. Set out the warm tortillas and all the toppings in small bowls. Let everyone build their own fajitas.
Tips for the Best Vegetable Fajitas
Get the pan hot. A vegetable fajitas recipe depends on high heat for those charred edges. If the pan is not hot enough, the peppers steam instead of sear. Wait until the oil shimmers before adding the vegetables.
Do not crowd the pan. If the peppers are piled deep in the skillet, they will steam. Cook them in a single crowded layer at most. If your skillet is small, cook the peppers in two batches.
Warm the tortillas. Cold tortillas crack when you fold them. Warm them in a dry skillet for about 30 seconds per side, or wrap them in a damp paper towel and microwave for 30 seconds. Soft, warm tortillas make better fajitas.
Serving Suggestions
A platter of grilled vegetable fajitas with all the toppings makes a complete dinner. For a heartier meal, add a side of Mexican rice or black beans. Leftover vegetables are great the next day in a burrito bowl or on top of a salad.
Storage
The cooked vegetables keep in the fridge for up to three days. Reheat in a hot skillet for a few minutes to bring back the charred edges. The microwave works but the vegetables will lose their texture. Do not freeze. Grilled peppers and onions turn mushy when thawed.
A vegetable fajitas recipe is the kind of dinner that makes vegetables the star of the show. Most of the work is slicing peppers and onions. A vegetable chopper handles that fast. The grill does the rest.
