Step 1

In a large bowl, combine the onions, bell peppers, broccoli, and mushrooms.

Step 2

In a glass measuring cup, combine the oil and spices. Pour over the vegetable mixture and stir well.

Step 3

Heat a large cast iron or non-stick skillet over medium high heat. Once hot, add the marinated vegetables and cook, stirring, until just tender, 5-7 minutes. Spoon into warmed tortillas and top with avocado, lime juice, and cilantro if desired.