Preheat oven to 350 degrees, and line a rimmed baking with parchment paper and mist with cooking spray or an olive oil mister.
Toss brussels sprouts with oil in a medium sized bowl, making sure to coat evenly with the oil. Evenly spread brussels sprouts on baking sheet then season with salt and pepper. Place in oven and roast until golden brown, about 20 minutes.
1 lb brussels sprouts, 1 tsp olive oil, Salt and pepper to taste
While brussels sprouts are roasting, mix mayonnaise, yogurt, and sriracha sauce in a small bowl, and season with a bit of salt. Cover and refrigerate until ready to use.