Wrap your beef burgers with plastic wrap and roll the meat. We want our patties to be a little larger and thinner.

Add some olive oil to a skillet, heat it up and cook beef burger patties for 2-3 minutes on each side. Add a pinch of salt and black pepper to the meat. Make sure it is fully cooked before removing it.

Pat the meat with a kitchen towel to get rid of excess fat.

Fry an egg over medium heat in a skillet. Sprinkle with salt and pepper.

Mash avocado and spread it on both of the patties. Afterward, add a fried egg on top of one of the patties (with the avocado side up), and cover with pickled cucumber.

Drizzle some yellow mustard and finish it up by covering with a lettuce leave. Finally, cover it with the second patty with the avocado side down.

That's it! Enjoy your keto sandwich!