Preheat your oven to 375°F (190°C) and lightly grease a small ramekin or oven-safe baking dish with the olive oil.
In a small skillet over medium heat, cook the turkey bacon until it reaches a crispy texture, then remove and chop into bite-sized pieces.
Add the fresh spinach and halved cherry tomatoes to the same skillet, sautéing briefly for 1-2 minutes until the spinach is just wilted.
Transfer the sautéed vegetables and chopped turkey bacon into the prepared baking dish, spreading them into an even layer.
Carefully crack the three eggs over the vegetable and bacon mixture, taking care to keep the yolks intact.
Season the tops of the eggs with sea salt and black pepper.
Bake for 12-15 minutes, or until the whites are fully set but the yolks remain slightly runny.
While the eggs bake, toast the slice of whole grain bread until golden.
Remove the dish from the oven and serve immediately with the toast on the side.