Preheat the oven to 200 degrees Celsius (400 degrees Fahrenheit)
Place the butternut squash cubes, chopped onion and mushrooms on the baking tray and drizzle with the olive oil and salt. Toss with your hands until well coated. Spread them around the tray making spaces for the strips of bacon. Add the bacon and then bake everything in the oven for 10 minutes.
After 10 minutes turn anything that looks like it might be burning and add the cherry tomatoes to the tray. Return the tray to the oven and bake for another 10 minutes.
Remove the tray from the oven and create spaces for 4 eggs. Try to build up walls around each space which will help to contain the egg.
Crack each egg on to the tray being sure that you do not break the yolk. Gently return the tray to the oven and bake for a further 4 to 5 minutes until the whites have set.
Before serving sprinkle the tray with the chopped parsley.