Portobello mushrooms stuffed with sautéed peppers, onions, black beans, and cheese. All of your favorite fajita flavors stuffed in a mushroom! Serve with your favorite toppings for a fun and delicious vegetarian meal!
Preheat the oven to 400 degrees F. Set a wire rack on a rimmed baking sheet and set aside. With a spoon, gently scoop out the gills that are inside the Portobello mushrooms. Discard the gills and set the mushrooms aside.
In a small bowl, combine the chili powder, cumin, garlic powder, onion powder, smoked paprika, salt and pepper.
In a large cast iron skillet, heat the oil over medium-high heat. Add the peppers and onions; stir until the veggies are coated in the oil. Add the fajita seasoning and cook for 5 minutes, stirring frequently. Stir in the lime juice and cook for 2 minutes. The vegetables should be tender but still slightly crisp.
Stir in the black beans and cilantro. Divide the pepper and bean mixture evenly between the portobello mushrooms. Sprinkle cheese evenly over the mushrooms.
Place the mushrooms on the wire rack and bake for 20-25 minutes or until the cheese is melted and mushrooms are tender. If you want to brown the cheese on the top, put the pan under the broiler for 1 minute. Make sure you watch the mushrooms closely; the cheese will brown quickly.
Remove from the oven top with desired toppings. Serve warm.