Toast the bread until it's golden brown and crispy.

While the bread is toasting, cut the avocado in half and remove the pit.

Scoop out the avocado flesh and mash it in a bowl with a fork.

Squeeze the juice from the half lemon into the bowl with the mashed avocado.

Add salt and pepper to taste, and mix well.

Spread the avocado mixture evenly onto the toasted bread slices.

Serve immediately and enjoy!