Step 1
Preheat the oven to 180°C (160°C fan).
Step 2
Lightly grease an 8-hole muffin tin.
Step 3
Crack the Duncan's Eggs into a bowl, season with salt and pepper, and whisk well.
Step 4
Stir in the spinach, pepper, onion, and tomatoes.
Step 5
Divide the mixture evenly between the muffin holes.
Step 6
Bake for 18–22 minutes, until set in the middle.
Step 7
Leave to cool for a few minutes, then remove from the tin.