If you need to eat a lot, stuff yourself at the lounge to the point you can't take another bite. Then onboard hold off the meal service until mid-flight when you are hungry again. I never had problem asking the crew to hold off my meal until later on TRANSPAC flights in J.
PJ is only for flights scheduled for longer than 12 hours. EWR-TLV is only 10.5 hours - PJ should not be available.