Is it ok to feed my border terrier, boiled breast chicken with boiled sausage,?

i have every type of dryed food or i've tried it ,also all types of tinned an packet food , he won't touch it, once in a blue moon he'll have a bit of dryed, as i always leave some in his bowl but it all ends up out for the birds , so the only food he will eat is boiled sausage or chicken not fryed or baked and won't touch turkey, i'm a little concerned as i love oscar and want the best long life for him, he has shapes and dental stick for breakfast, thanks all x