You don’t need tickets to a Mets game to partake of the pleasures at this year-round indoor beer garden at Citi Field. Mikkeller is a Denmark-based craft brewer; many of the 50 or so beers on tap are theirs, some produced on the premises. There’s room for 120 people at communal tables; food options include Pat LaFrieda all-beef hot dogs and burgers, plus healthy items from Great Northern Food Hall.