Take a muffin tin and grease it with olive oil. Put one sausage patty in each cup, shaping with a shot glass to line the entire inside.
Evenly divide the avocado and cheese in the cups.
Beat eggs and heavy cream together in a bowl, season with salt, then pour into each cup until cheese and avocado are covered. Top with black pepper to taste.
Bake for 20 minutes at 350F; if desired, broil for an additional 1-2 minutes until top is browned. Enjoy!