Spread 1 tablespoon of mayonnaise onto each half of the bolillo bread.
Toast the bolillo bread on both sides in a large skillet over medium-high heat until lightly browned and toasted.
Spread 2 tablespoons of refried beans on the bottom halves of the bolillo bread and additional mayonnaise if desired on the top halves of the bolillo bread.
Assemble each torta by layering 2 slices of ham, 2 slices of queso fresco, sliced tomato, onion, avocado, pickled jalapeños, and shredded lettuce onto each bottom half. Close the sandwich with the top half and serve.
Notes
Customize the fillings. Feel free to add more of your favorite fillings or add more condiments like mustard or even salsa.
Can't find bolillo bread? You can make your own or use Telera or French bread instead.
Toast the bolillo bread. Toasting the bread before assembling your torta de jamon is important so that it doesn’t become soggy and can hold up to all the fillings. It also gives it a warm and crusty texture.