01 - In a small bowl, whisk together eggs, milk, salt, and pepper until fully combined.
02 - Heat a non-stick skillet over medium heat and lightly coat with olive oil or cooking spray. Pour in the egg mixture and scramble gently until just set, approximately 2-3 minutes.
03 - Lay the toasted English muffin halves on a clean surface. Spread Greek yogurt or hummus on the bottom half of each muffin if desired.
04 - Layer spinach leaves, scrambled eggs, a slice of cheese, tomato slices, and avocado on each bottom half. Top with the other muffin half and press gently to secure.
05 - Serve warm immediately or wrap in parchment paper for an on-the-go meal.