Clean butternut squash and cut in half. Scrape out the seeds. Cut into smaller pieces and then cut into cubes.
Wash and clean brussel sprouts.
Peel sweet potatoes and cut into cubes.
Boil 4 litres of water.
Add brussel sprouts to boiling water and cook over medium heat for 10 minutes.
Add cubed sweet potatoes and butternut squash.
Cook for another 10 minutes.
Drain.
Prepare baking sheet with parchment paper.
Spread veggies on to baking sheet.
Sprinkle with oil, salt and pepper.
Bake in oven at 370F for 15 minutes.
Mix all together and then serve.