Your main damage is going to come from shillelagh, combined with large size for some nice base dice damage, and the extra attack from FoB with the monk weapon, you won't top the DPR meters, but it keeps you respectable, especially when you also have pounce power attack dino mode if you need it, as well as a nice list of spells to choose from. The domain power of growth domain gives you reach which is always nice, and you can go six level so druid if you want to get large humoind size as well. If I recall, you can hit 7 just before the end of the campaign, so that can be included in what's viable.
Another option for your level 7, as seen above is to go ranger 1 for a goof... it gives you FE, and you can take the shape shifting hunter feat to get druid levels ->FE levels, meaning since you know you're fighting a dragon, you can go drag +4 right out the gate.
At level one, you're looking at typical monk madness, having 17-20hp (FCB if you have multi talented could go into it, racial adjustments etc...), something around 15 AC (not the best) and a nice 1d6+4(x2 on FoB) at 1 BAB... gives you decent survival at the onset. from there, you get the druid goodies, shillelagh and enlarge person at 2, barkskin at 4, wild shape at 5, etc...