Tropical Smoothie Café has grown from a single site in Tallahassee, Florida, in 1997 to having more than 600 locations in 43 states nationwide today. In Colorado, Tropical Smoothie has two Centennial locations and one coming soon to Arvada, according to its website. I spoke recently with CEO Mike Rotondo about the company’s journey and what’s ahead. Q: With your success and experience in the franchising industry, what did you see in this franchise that you knew you could add value? A: Tropical…