These meats are usually really cheap, so I recommend to switch to these dishes at 50, but if they are expensive on your realm, then it's better to make more [Rank 2 - Kul Tiramisu] up to around 75. As a general rule, if 1 Aromatic Fish Oil cost around the same as these meats, then you should make Kul Tiramisu because even if you have to craft 2-3 for a skill point, you would still only need 4-6 Fish Oil, instead of the 10 meats.
Once you have your potions, proceed to complete all the bonus objectives in your starting zone. This should easily level you to 92, where you can proceed to Gorgrond. Interesting enough, for some reason many Gorgrond quests are worth nearly double the experience of quests in other zones. Maybe this is a bug, maybe intended, I'm not sure. But I actually recommend you do all the quests and bonus objectives in Gorgrond. For your outpost choice, I recommend choosing the Gladiators, since they give access to more treasures than the shredder IMO.
Battle for Azeroth’s War Mode puts you into PvP mode and grants you 10 percent extra experience. But since the two factions will mostly level in separate zones entirely, you should almost definitely have this on when you’re leveling. That said, if you start getting killed by random PvP players consistently, stop using it. Although 10 percent is nice, it’s not worth dying every few minutes for.