
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.