Portobello Mushroom Fajitas

Ingredients (15)

• 3 tablespoons olive oil
• 3 tablespoons fresh lime juice
• 2 tablespoons homemade fajitas seasoning
• 1/4 teaspoon cayenne pepper
• 3 to 4 large portobello mushrooms, cut into 1/2-inch thick slices
• 1 red bell pepper, sliced into strips
• 1 green bell pepper, sliced into strips
• 1 yellow bell pepper, sliced into strips
• 1 yellow onion, thinly sliced
• 8 low carb flour tortillas, for serving
• lime wedges, for serving
• salsa, for serving, optional
• avocado slices, for serving, optional
• chopped fresh cilantro, for serving, optional
• sour cream, for serving, optional