Heat a skillet over medium high heat.
Melt a pat of butter in the pan (This makes it easier to flip the egg than using typical pam).
Once the pan is hot, crack the egg into the pan until the white of the egg cooks through.
Flip once to cook the other side from 20-30 seconds.
Once the pieces of avocado toast have cooked, take out of the oven and add the egg on top. Enjoy!