A fluttering red, white and green flag signals that all things Italian can be found at Toscana Cafe, a sunny-yellow corner roost slated to open this week across from Union Station. Its brick-walled downstairs deli will dispense pizza, salads and ciabatta sandwiches filled with rustic delicacies (perfect for picnics on its ample patio or at one’s desk), while a modish upstairs dining room, with exposed wine racks and curtained windows, will serve affordably priced, authentic antipasti, pastas and entrees at night (601 2nd St. NE; 202-247-5033).