in a pot, bring canned tomatoes, onion, garlic, jalapeno, smoked paprika, cumin, and chili powder to a boil; reduce to a simmer and stir occasionally. About 10 minutes.
Heat up your black beans in a separate pot. Fry up your eggs, one at a time, in a small pan in 2 tbsp of olive oil; cover with a lid until the egg is opaque.
Top tostada shells with black beans, salsa, then fried egg. Top with more of the salsa, cojita cheese, cilantro, and some serrano pepper to add some more spice. Enjoy!
Notes
OPTIONAL: if you'd like to thicken up the salsa, stir in about 1/4 tsp of corn starch or more for desired consistency.