- Preheat oven to 180°C.
- Lightly grease a 6 cup muffin tray with olive oil. Layer bacon or ham inside the muffin tray cups to form a basket.
- Distribute the baby spinach, basil, olives and red onion evenly between the lined muffin cups. Crack an egg into each muffin cup over the top of the other ingredients and top with a cherry tomato.
- Season with salt and pepper.
- Bake until egg is set.