You can get 375 cooking without much expense, the worst thing you have to do is the quest to get artisan.
Rest of the time you can mostly cook some fish up and level it up.
You can make a lot of money cooking, too.
Any of the below consumables can sell for as much as 25g a stack because raiders will load up on them and don't mind paying for them. All of them require only the fish you catch as mats. I personally buy the stam and agi foods for different runs - stack at a time at around 20-25g per stack. In general the "raw fish" sell for half of what the "cooked version" sells for.
So it's really an investment.

Cooking 320 - Feltail Delight - 20 stam/spi for 30 mins - http://thottbot.com/i27662
Cooking 320 - Brioled Bloodfin - 20 stam/spi for 30 mins - http://thottbot.com/i33867
Cooking 330 - Blackened Sporefish - 20 stam and 8 mp5 for 30 mins - http://thottbot.com/i27663
Cooking 335 - Skullfish Soup - 20 spell crit and spi for 30 mins - http://thottbot.com/i33825
Cooking 340 - Grilled Mudfish - 20 agi/spi for 30 mins - http://thottbot.com/i27664
Cooking 340 - Poached Bluefish - 23 spell dam and 20 spi for 30 mins - http://thottbot.com/i27665
Cooking 345 - Golden Fishsticks - 44 healing and 20 spi for 30 mins - http://thottbot.com/i27666
Cooking 370 - Spicy Crawdad - 30 stam and 20 spi for 30 mins - http://thottbot.com/i27667