A tostada is essentially a taco that refuses to fold: a whole corn tortilla fried flat until rigid, spread with refried beans as structural adhesive, then loaded with toppings piled from heaviest to lightest so it balances before the first bite. The crispy base soaks up the sauce and juices from above in the first minutes after building, and there is a narrow window — roughly three to five minutes — when the tostada is at its best: the tortilla still has some crunch and the beans have warmed the base without making it soggy. Tostadas appear at ceviches stands along the Pacific and Caribbean coasts (piled with raw fish, avocado, and lime), at market stalls in Mexico City (with tinga or chicken tlaquepaqueña), and at home tables across Mexico as a way to use leftover protein without starting from scratch.
Heat about 1/2 inch of vegetable oil in a large skillet over medium-high heat.
Once the oil is hot, fry the corn tortillas one at a time until they are golden brown and crispy, about 1-2 minutes per side.
Use a slotted spoon to remove the tortillas from the oil and place them on a paper towel-lined plate to drain any excess oil.
Spread a layer of warmed refried beans onto each crispy tostada shell.
Add a layer of cooked, shredded chicken or beef on top of the beans.
Top with shredded lettuce, diced tomatoes, diced onions, shredded cheese, chopped fresh cilantro, and avocado slices.
Flat fried corn tortilla base spread with refried beans and topped with protein + garnishes; open-faced, not folded.
Mexico; name means 'toasted'; the form predates Spanish contact as a way to use old tortillas that hardened after a day.
Corn tortillas (fried flat), refried black or pinto beans, protein (chicken tinga, ceviche, shrimp), shredded lettuce, crema, cotija, avocado, salsa.
Spread the beans first, not last — they act as glue between tortilla and toppings; eat immediately after assembly or the tortilla goes soggy within minutes.
Agua de tamarindo or Jamaica; as a starter or snack; Mexican beer; also works as a ceviche vehicle at seafood counters.