If your idea of the Dutchtown neighborhood is confined to windmills and Bosnian restaurants, Joel Castillo of Salinas 2 (4601 Gravois Avenue, 314-696-8877) wants to change your mind.
On August 23, Castillo and his business partners opened the doors to their Mexican restaurant, Salinas 2, in a Gravois storefront that used to house Bosnia Gold.…