With all the ingredients ready, let’s dive into the step-by-step instructions on how to prepare these delightful egg cups.

Step-by-Step Guide

1. Preheat Your Oven:
   Begin by preheating your oven to 350°F (175°C). This will ensure that your egg cups cook evenly.
2. Prepare the Muffin Tin:
   Use cooking spray or a light coating of oil to grease a 12-cup muffin tin. This will prevent the egg cups from sticking and make cleanup easier.
3. Arrange the Turkey Ham:
   Place one slice of turkey ham into each muffin cup, pressing it down to form a cup shape. This will serve as the base for your egg mixture.
4. Sauté the Spinach (Optional):
   If desired, sauté the chopped spinach in a pan with a little oil until wilted. This step enhances the flavor of the spinach and removes excess moisture.
5. Prepare the Egg Mixture:
   In a large mixing bowl, whisk together the eggs and milk until well combined. Season with salt and pepper to taste. If you’re adding any optional ingredients like chopped onions or bell peppers, mix them in now.
6. Assemble the Egg Cups:
   Evenly distribute the chopped spinach and shredded cheese among the prepared muffin cups. Pour the egg mixture over the spinach and cheese, filling each cup about ¾ full.
7. Bake the Egg Cups:
   Place the muffin tin in the preheated oven and bake for 20-25 minutes, or until the eggs are set and lightly golden on top.
8. Cool and Serve:
   Allow the egg cups to cool for a few minutes in the tin before gently removing them. Use a butter knife to loosen the edges if necessary. Serve warm or let them cool completely before storing.