What comes to me right away is "Fire and Forget, like a Javelin?!"... although that's possibly the wrong Javelin.
I'll at least try to preserve the "throw" pun, though...
Nice. Using the literal translation for 投げ遣り works rather well.
Food?What's with you just carelessly tossing ideas ou—
—'Tossing it out there', like a javelin!?
Ah!
Just order whatever you like when it's convenient from a delivery ship, eh, wot?
出前艦 (delivery ship) here is a parody of 出前館 (Demae-can), a home delivery portal.