Sheet Pan Portobello Fajitas

4.79 from 37 votes

Sheet Pan Portobello Fajitas

Sheet Pan Portobello Fajitas are an easy and flavorful vegetarian dinner idea that all cooks on one pan for easy cleanup!

Prep Time15

Cook Time40

Total Time55

Course: Dinner

Cuisine: Southwest

Total Cost: $10.81 recipe / $2.70 serving

Servings: (two fajitas each)

Calories: 423kcal

Author: Beth Moncel

Equipment

Enamelware Sheet Pan

Ingredients

FAJITA SPICE MIX

1 Tbsp chili powder* $0.30
1/2 tsp chipotle powder $0.05
1/2 tsp onion powder $0.05
1 tsp cumin $0.10
1/2 tsp garlic powder $0.05
1 tsp sugar** $0.05
1/2 tsp salt $0.03

FAJITAS

2 portobello mushroom caps $3.99
2 bell peppers (any color) $2.29
2 yellow onions $0.64
3 Tbsp olive oil $0.38
8 small flour tortillas (6-inch) $1.00
1 avocado $1.09
handful cilantro (optional) $0.25
1 fresh lime $0.59

Instructions

Preheat the oven to 400ºF. In a small bowl, stir together all the ingredients for the fajita spice mix
Slice the portobellos, bell peppers, and onions into 1/4 inch wide strips. Place the sliced vegetables on a large sheet pan. Drizzle the olive oil over the vegetables then sprinkle the fajita spice mix over top. Use your hands to toss the vegetables until everything is well coated in oil and spices.
Roast the vegetables in the fully preheated oven for 40 minutes, or until the vegetables are slightly wilted and the edges have a nice brown color. Stir the vegetables half way through the roasting time to make sure everything gets even exposure to the hot air.
After removing the vegetables from the oven, squeeze fresh lime juice over top. Sprinkle chopped cilantro over the vegetables. To serve the fajitas, scoop a small amount of the roasted vegetables into each tortilla and add a slice of avocado.

See how we calculate recipe costs here.

Notes

*The chili powder I use is a mild blend made by McCormick. It is not spicy at all and contains barely any salt. If using a different brand, make sure to adjust the salt and/or chipotle accordingly.

**The small amount of sugar in this recipe helps caramelize the vegetables and give everything that grilled or charred flavor that is characteristic of fajitas.

Nutrition

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