Preheat the oven to 425F
Trim the brown woody edges from the brussel sprouts if needed. Cut the brussel sprouts in half lengthwise
Place parchment paper or a silicon liner on a rimmed baking sheet.
Add the brussels to the baking sheet and drizzle 1 tbsp avocado oil and 1 tsp salt over the brussels. Stir them well with your hands
Place brussels in the oven for 20 minutes at 425F.
After 20 minutes, remove the brussels from the oven and flip them around, making sure that both sides can get brown and crispy. Place brussels back in the oven
Bake for an additional 5 minutes at 425F. While brussels are baking, make the garlic dijon sauce
After 5 minutes, remove the brussels and pour 1 tbsp garlic olive oil (or 1 tbsp olive oil + 1 tsp garlic powder) over the brussels. Stir well and place back in the oven 2 more minutes.
After 2 minutes remove the brussels and serve with the garlic dijon sauce