Breastfeeding??

Hey guys, so I’ve just had a little boy and I’m exclusively breastfeeding, I was wondering if anyone had an meal suggestions or even just certain foods that are good for me and baby and MILKSUPPLY!! I’ve noticed my milk supply has gone down a tiny bit and need to keep it up? I’m also not getting enough calories in the day as I should be so and foods/meals would be so helpful pleaseeee xx