In a mixing bowl, combine the drained and rinsed black beans with lime juice and kosher salt. Gently mash the beans with a fork until they are mostly smooth but still have some texture. Set aside.
Heat the olive oil in a non-stick skillet over medium heat. Crack the eggs into the skillet, being careful not to break the yolks. Cook the eggs to your desired doneness—sunny-side up, over-easy, or scrambled.
While the eggs are cooking, toast the slices of whole-grain bread in a toaster until golden brown and crispy.
Spread a generous layer of the black bean mixture on each slice of toast. Top with the cooked eggs, followed by a spoonful of salsa. Finally, sprinkle with fresh parsley for a pop of color and flavor.
Serve the Black Bean and Egg Southwest Toast warm, and enjoy this delightful and nourishing meal.