Add in 1/2 cup black beans, as well as 1/8 tsp each of cumin, smoked paprika and chili powder. Add salt and pepper and mix to combine. Cook for 5-8 minutes until beans have softened.
Remove from heat and mash with a potato masher or fork until it turns into a paste. You can add 2-3 tbsp of water until you get a desirable consistency.
Pico de Gallo
Next, prep the pico de gallo. To do so, dice 1/2 a tomato, 1/8th of a red onion and chop a handful of cilantro. Add to a small bowl.
To that same bowl, add in the juice of one lime, as well as salt and pepper to taste. Mix to combine.
Eggs
Finally, cook 1 or 2 eggs to your liking.
Assemble
To assemble, spread black bean paste on tostadas and add egg. Top with sliced avocado and pico de gallo.