Toast the slices of whole grain bread using a toaster or grill until they are golden brown and crispy.
While the bread is toasting, cut the avocado in half, remove the pit, and scoop the flesh into a small bowl.
Mash the avocado with a fork until you reach your desired consistency (smooth or chunky). Mix in lemon juice, and season with salt and pepper to taste.
Once the toast is ready, spread the optional cream cheese on each slice if using.
Evenly distribute the mashed avocado over the toasted bread.
Top each toast with smoked salmon, placing it artistically for visual appeal.
Add any optional toppings like capers, fresh dill, or a sprinkle of red pepper flakes.
Serve immediately on a plate, and enjoy your delicious Smoked Salmon and Avocado Toast!