I think Nothingness was saying it took their betta a while to eat their first pellet, which was only one.. now it eats 5 :)
3-5 pellets per meal twice a day is a good amount to feed :)
dramaqueen is right on the frozen, it's good for them every so often as it has lots of protein :)
New Life Spectrum and Omega One Betta Buffet are also real good to feed them, pellet wise.
I would just stay away from freeze dried all together - give them their protein boost through frozen. But it's up to you and what your fish likes.. most of mine won't even look at freeze dried foods heh.