Preheat grill to medium high heat.
Toss together cauliflower and olive oil in a large bowl. Season with salt and pepper.
Place cauliflower on grill pan and grill for 10 -12 minutes, turning every 3-4 minutes. Baste cauliflower with ¼ cup Stubb's Texas Sriracha Anytime Sauce. Grill for another 3 minutes and turn cauliflower. Baste with remaining sauce and continue cooking for an additional 3 minutes or until tender throughout. Serve immediately.