Heat the olive oil in a small OVENPROOF cast iron skillet over medium heat. Add the tomatoes and crushed red pepper flakes and cook, stirring often, for 1-2 minutes, or until softened. Season with sea salt and freshly cracked pepper, to taste, and toss to coat evenly.
Take the skillet off heat, spoon a bit of pesto on top, and gently stir to coat evenly.
Sprinkle the top with a bit of mozzarella cheese. Spread the tomatoes towards the sides of the skillet. Add a teaspoon of milk or cream (this will help the veggies not burn & the eggs not get browned on the bottom of the skillet).
Carefully crack the eggs into the center of the skillet, making sure not to break the yolks. Season the top of the eggs with sea salt and freshly cracked pepper, to taste.
Place into the oven and bake for 9-10 minutes or until the egg whites are set but the yolks are still soft and runny.
Remove from the oven and sprinkle with additional pesto and mozzarella if desired. Serve plain or with toast. Enjoy!