C.M.
Go to church, have the Easter Egg hunt, do lunch (whatever is your norm).
An hour or two later, have your daughter change into her 'birthday dress' and while doing that, set up balloons (don't have to be helium - regular ones on the floor will work). Get everyone together and light the candles so when she comes in, you can all sing to her. Cake, ice cream and singing - that should be enough since she sounds like she's mostly just wants everyone to be there!