My dbro and family are coming for lunch on Sunday to celebrate dd's birthday and I've just realised we are at sporting matches all morning so need to get prepped and ready tomorrow but no idea what to cook. If it's raining so we need to be able to eat on our laps as our dining table isn't big enough for all of us, sil is veggie and their kids are quite fussy
Any ideas:
needs to serve 11 adults (dc are all teens)
Two main dishes - 1 veggie 1 not
Easy sides - leaf salad, breads etc
Fine to prep in advance - something like lasagne but not as I'm the only one that likes it in my family 
Nothing mince based
Any ideas?