We wipe the mushrooms with a damp cloth and slice. We get about 2 cups of sliced mushrooms. We also mince the garlic, yielding about 1/2 tablespoon.
We add the peppers to the onions and cook for another 5 minutes. Next we add the mushrooms. After cooking for 3 minutes, we raise the heat to medium, and add a little salt. We cook for a few more minutes and then add the cumin seed and garlic. We lower the heat and cook for a couple more minutes.
Meanwhile, we chop the cilantro and juice half of the lime. The remaining half of lime we slice to use as garnish.
We stir the cilantro and lime juice into the cooked vegetables and serve.