Heat 1 tbsp of olive oil in a pan over medium heat. Add onions and cook 3-4 minutes or until they begin to look translucent.
Add the assortment of peppers and zucchini to the pan and cook 4-5 minutes or until the peppers start to soften. Add 1 tbsp of olive oil if the vegetables begin to stick to the pan. Stir occasionally.
Add the mushrooms and garlic to the pan along with cumin, oregano, and cayenne pepper. Toss and cook for 2-3 minutes or until the mushrooms are lightly browned.