Toast the four slices of artisan bread until golden brown and crispy.
Halve the avocados, remove the pit, and mash the flesh in a bowl with black pepper.
Spread the mashed mixture evenly over each toasted slice.
Top the first slice with cherry tomatoes, mozzarella balls, fresh basil, and balsamic glaze.
Top the second slice with cooked beef slices, red chili peppers, and cilantro.
Spread cream cheese on the third slice, adding smoked salmon, cucumber, red onion, capers, and dill.
Top the fourth slice with fried eggs and a sprinkle of everything bagel seasoning.