01 - Whisk together eggs, milk, salt, and pepper in a medium bowl until thoroughly combined and uniform in color.
02 - Cook bacon in a large non-stick skillet over medium heat until crispy and browned. Transfer to paper towel-lined plate to drain, crumble once cooled. Wipe skillet leaving approximately 1 teaspoon rendered fat.
03 - Add diced bell pepper to skillet and sauté for 2 minutes until slightly softened. Add chopped spinach and cook for 1 minute until just wilted.
04 - Reduce heat to low. Add butter to skillet, then pour in egg mixture. Allow to sit undisturbed for 30 seconds, then gently push eggs across pan with spatula, forming soft curds.
05 - When eggs are softly set but still slightly moist, sprinkle cheddar cheese, crumbled bacon, and green onions over top. Gently fold until cheese melts and eggs reach desired consistency.
06 - Transfer to serving plates immediately while hot. Garnish with additional green onions if desired.