Creating Black Bean Tacos is straightforward and enjoyable if you follow these simple steps:

1. Heat the Oil: In a medium skillet, heat the olive oil over medium heat.
2. Sauté the Onion: Add the diced onion and cook for 3-5 minutes, or until translucent.
3. Add Garlic: Stir in the minced garlic and cook for another minute until fragrant.
4. Mix in Beans and Spices: Add the black beans, cumin, chili powder, salt, and pepper. Cook for 5-7 minutes, stirring occasionally, until heated through.
5. Warm the Tortillas: In a separate pan or microwave, warm the tortillas until soft and pliable.
6. Assemble the Tacos: Spoon generous portions of the black bean mixture onto each tortilla.
7. Add Toppings: Top with diced tomatoes, avocado slices, lettuce, and cheese, if desired.
8. Garnish: Finish with fresh cilantro and a squeeze of lime for extra flavor.
9. Serve Immediately: Enjoy your delicious Black Bean Tacos while they are warm.

These steps will guide you through making these wonderful tacos effortlessly.