“Fun Mom Dinner” features an ensemble cast of comedic talent led by Katie Aselton (FX’s “The League,” “The Gift”), Toni Collette (“Little Miss Sunshine,” Showtime’s “United States of Tara”), Bridget Everett (“Trainwreck,” Comedy Central’s “Inside Amy Schumer”), Molly Shannon (HBO’s “Enlightened,” NBC’s “Saturday Night Live”), Adam Scott (NBC’s “Parks and Recreation,” “Hot Tub Time Machine …