Creating the Mexican Zucchini Skillet can be straightforward if you follow these steps:

1. Prepare the Skillet: Heat olive oil in a large skillet over medium heat.
2. Add Onions and Garlic: Sauté the diced onion for 3-4 minutes until it becomes translucent. Add the minced garlic and cook for 1 more minute.
3. Sauté the Bell Peppers: Toss in the diced bell pepper, stirring occasionally until softened, about 3 minutes.
4. Incorporate Zucchini: Add the sliced zucchinis to the skillet. Cook for 5-7 minutes, stirring occasionally, until the zucchini is tender.
5. Season the Mixture: Sprinkle in cumin, chili powder, salt, and pepper. Mix well to combine and cook for another 2 minutes.
6. Add Black Beans: Stir in the black beans, heating through for 2-3 minutes. Adjust seasoning if necessary.
7. Garnish and Serve: Remove from heat and garnish with fresh cilantro. Serve hot with lime wedges on the side.

These simple steps will guide you to create this incredible dish easily!