Preheat your oven to 350°F (175°C) and grease a muffin tin with cooking spray or melted butter.

In a mixing bowl, whisk together the eggs and heavy cream until well combined. Season with salt and pepper to taste.

Stir in the shredded cheddar cheese, diced bacon or ham, and diced vegetables into the egg mixture.

Pour the egg mixture evenly into the greased muffin tin, filling each cup about 2/3 full.

Bake in the preheated oven for approximately 18-20 minutes, or until the egg bites are set and slightly golden on top.

Remove the muffin tin from the oven and let the egg bites cool for a few minutes.

Gently loosen the egg bites from the muffin tin using a butter knife, and then transfer them to a wire rack to cool completely.

Once cooled, these keto egg bites are ready to be enjoyed.