01 -  Rinse and drain the cooked black beans. Season with salt and pepper to taste. 
 02 -  Mix the fresh corn kernels, diced tomatoes, and finely chopped onions in a bowl. Add salt, pepper, and a squeeze of lime juice. 
 03 -  Heat the tortillas in a dry skillet over medium heat for 30 seconds per side or until warm and pliable. 
 04 -  Layer black beans, corn salsa, and sliced avocado onto each tortilla. Optionally, garnish with fresh cilantro or a drizzle of lime juice.