i was in the same situation awhile back. Done a few searches on the forum and found plenty of good info!
chicken,red meat,oats,Peanut butter,tuna,cheese,nuts stuff like that. Was really suprised at the amount of protein thats packed into soya nuts :jaw: They taste alright too.
I just went down to my supermarket and had a good look around. A lot of foods nowadays have good labels on them so you know how much cals are packed in. If i was still unsure i'd just keep searching till i found something online
Try keep the bulk as clean as possible, none of that junk food rubbish