Following these simple steps will ensure you create delicious Easy Breakfast Egg Muffins without any hassle:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Muffin Tin: Grease a muffin tin with cooking spray or olive oil to prevent sticking.
3. Whisk Eggs: In a large bowl, crack the eggs and whisk together with milk, salt, and pepper until fully combined.
4. Add Vegetables and Cheese: Stir in the chopped vegetables and shredded cheese. If using meat, add it as well.
5. Fill Muffin Tins: Pour the egg mixture evenly into each muffin cup, filling about ¾ full.
6. Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes, or until the egg muffins are set and lightly golden on top.
7. Cool and Remove: Let them cool in the tin for a few minutes, then gently remove the muffins and place them on a wire rack to cool completely.
8. Store or Serve: Enjoy immediately or store in an airtight container in the refrigerator or freezer for later.

Following these steps will guide you seamlessly through creating these delightful muffins.