Pre-grill the sausage and bacon, cool and chop.
Divide into a silicone muffin tray.
Chop mushrooms and divide between the muffin tray.
Quarter cherry tomatoes and divide between the muffin tray.
Top with grated cheddar cheese.
Whisk egg and pour into muffin moulds till just covering all the other ingredients.
Bake at 200 degrees celsius for about 18 minutes.
Eat hot or cold.