First, steam the head of cauliflower. In a large pot add about 2 cups of water and place a steamer basket in the bottom.
Bring the water to a boil. Add the cauliflower florets into the steamer basket.
Cover the pot and steam until the cauliflower florets are tender 6-8 minutes. The time will depend on how tender you prefer your cauliflower florets to be.
Remove from the heat and also remove the lid from the pot. Let the cauliflower cool down for 5 minutes.
While the cauliflower florets are been steamed, roast the butternut squash. Preheat oven to 400 degrees. On a baking sheet lined with parchment paper or silicone mat, place butternut squash and toss in olive oil and season with salt and black pepper. Mix well to combine.
Roast in the oven for 15-20 minutes (It'll depend on the size of the butternut squash diced).
Place the steamed cauliflower, the roasted butternut squash and the red onions in a bowl.
In a small glass bowl, add all the ingredients for the dressing and whisk everything together to combine.
Taste to check the seasoning and pour over the salad.
Mix all the ingredients together until well combined and garnish it with green onions.
Notes
If you have trouble cutting the butternut squash, you can microwave it for a few minutes to help soften it.
You can buy pre-cut butternut squash and cauliflower.
You can soak the red onions in cold water to mellow it out before adding it to the salad.
To store: Keep this recipe refrigerated for up to 4 days. When serving, do not leave it out at room temperature for too long.