Talk about saying "cheese."

When 20-month-old Koen Smith found queso, he found a friend for life.

His dad, Rick Smith, took a video of Koen's first encounter, which shows the toddler getting every last drop of deliciousness.

His dad posted the video to the family's Instagram.

Up until now, the toddler's favorite foods were apple sauce, crackers, chips, Cheerios and watermelon. No longer.

Cheese the day, Koen.