I don't think Molly Pitcher or Rooneys have brunch in the summer.Appreciate the suggestions. I've added Molly Pitcher to the list to check out.
Regarding the Stagehouse, some of us tried it last year and weren't blown away.
You may want to also consider Old Mill Inn in Bernardsville. KC Prime by the Quakerbridge Mall also has a decent brunch at a reasonable price (surprisingly good for a chain restaurant).