Begin by seasoning your beef liver or kidney with salt, pepper, and any additional spices you prefer.

Heat a non-stick pan over medium heat, adding your chosen cooking fat.

Cook the liver or kidney in the pan until it's no longer pink in the middle.

Once it's thoroughly cooked, remove it from the pan and set it aside. Before proceeding, be sure to clean your pan.

In a separate bowl, prepare your egg mixture.

Whisk together the eggs, salt, pepper, and any other spices you'd like to incorporate into your omelette.

Next, it's time to reheat your non-stick pan over medium heat.