Preheat the oven to 375°F. Arrange the corn tortillas on a baking sheet in a single layer. Bake for 8-10 minutes or until they become golden brown and crisp.
Evenly distribute the cooked and crumbled breakfast sausage over each crispy tortilla.
Sprinkle shredded cheddar cheese over the sausage. Place the baking sheet back in the oven for 2-3 minutes until the cheese is melted.
In a bowl, whisk the eggs until smooth. Cook them in a non-stick skillet over medium heat, stirring frequently, until soft and fluffy.
Spoon scrambled eggs onto each tostada, on top of the melted cheese.
Sprinkle fresh pico de gallo over the scrambled eggs and finish by adding a dollop of guacamole on each tostada.