An egg sandwich on a crusty bolillo roll is a quick, satisfying Mexican breakfast. This high protein, family-friendly, fresh dish is a healthy, portable morning meal option.
Crack the eggs into a bowl, season with salt and black pepper, and beat until well combined.
Heat a nonstick skillet over medium heat and add olive oil. Pour in the eggs and scramble gently, cooking until just set but still moist (about 2 minutes). Remove from heat.
Slice the bolillo rolls in half horizontally, then lightly toast the cut sides in the skillet for about 1–2 minutes until golden.
Spread mayonnaise on the bottom halves of the toasted rolls. Layer on sliced avocado, tomato, and lettuce for freshness.
Divide the cooked eggs evenly between the rolls, piling them onto the veggies. Top with the other half of each roll, press gently, and serve immediately.