Trim the Brussels sprouts by removing any gnarly outer leaves and tough stalk end. Halve them all.
Place the sprouts in a large bowl and drizzle on the olive oil and Sriracha. Season with salt and freshly ground black pepper and mix well to combine and evenly coat.
Spread the sprouts out on a large baking tray and cook for 12-14 minutes on the top shelf of the oven. Shake the tray halfway through.
In the meantime, make the drizzle by simply combining the mayonnaise, lime, and lemon juice (catch the pips!). Season the drizzle with salt and freshly ground black pepper.
Serve the delicious roasted sprouts with the drizzle and enjoy alongside your favorite meat, chicken, or fish.