Preheat the oven to 350 degrees f.
In a medium glass bowl, whisk together the eggs, milk, sea salt and pepper. Set aside.
Heat a large oven-safe nonstick skillet over medium heat. Add bacon and leek, and cook until crispy, about 3-4 minutes.
Stir in greens and tomatoes and cook for an additional 2 minutes until just wilted.
Add in egg mixture and gently stir to combine pretty well.
Transfer to your preheated oven and cook for 12-15 minutes or until eggs are set and cooked through.