So, did you purchase some meat? If so, how are they liking it??
I usually just leave the meat plain. Every one in awhile, I will sprinkle some garlic powder (NOT garlic salt) to the cooked meat, just for some kick. Plus, garlic (in small quantities) is good for dogs.
I have also boiled meat, chicken especially, in broth rather than water to puck up different flavors. Bullion cubes of different flavors will work in boiling water too. Just be creative! Your dogs will thank you for it no matter what you do. 🙂