Place cauliflower on a 17 x 12-inch baking pan. Drizzle with olive oil; toss to coat. Arrange cauliflower in a single layer. Lightly season with salt and pepper.
Bake for 20-25 minutes or until cauliflower is crisp-tender, stirring once.
Meanwhile, whisk the honey, brown sugar, chili garlic sauce and soy sauce in a bowl.
Drizzle cauliflower with half of the sauce. Sprinkle with jalapeño havarti. Bake for 2-3 minutes or until cheese is melted.
Drizzle with remaining sauce. Season with salt and pepper to taste. Sprinkle with green onions.