Mushroom Tacos

1. Use a large skillet over medium-high heat to warm the butter and olive oil. Add the onions and pepper and saute until the onions soften. Add in the salt, black pepper and red pepper flakes.
2. Add the mushrooms and garlic and stir them as they cook, for about 5 minutes. The mushrooms will begin to release their liquid.
3. Turn off the heat and add in the Parmesan cheese. Toss in the toasted pine nuts or walnuts if you’re using them, and mix everything well.
4. Grill or heat the tortillas in a dry skillet over medium heat. When they’re nice and soft add the mushroom mixture to each and serve.

Adapted from Whole Living.