Preheat the oven to 425°F and line a large baking sheet with parchment paper.
In a large bowl, toss the Brussels sprouts with olive oil, salt, and pepper until evenly coated. Spread them in a single layer on the prepared baking sheet.
Roast the Brussels sprouts for 20-25 minutes, flipping halfway, until crispy and golden brown.
While the sprouts roast, whisk together the mayonnaise, sweet chili sauce, sriracha, honey, and lime juice in a small bowl until smooth.
Transfer the roasted Brussels sprouts to a serving dish and drizzle with the sauce. Garnish with sesame seeds and cilantro before serving.