Basically, almost anything will do - I'm not real picky, as you know.
Although, there are a few things that I just won't eat - like plain ole dry lettuce. Or those bacon thingies.

Mom had a banana at the store the other day.
Naturally, I acted like banana was my favoritist food EVER!
And I told Mom I needed some banana, NOW!
But Mom was being all piggy about her banana, and wouldn't give me a single bite.
So then I told her that banana PEEL was my favoritist food EVER in the whole world, and I asked her very politely (I even stood up on my back legs) for the banana peel.

Mom looked at me like I was crazy, but she handed me the peel.
I have never even smelled one before - but since I had put on such a big show about getting this peel, I knew I couldn't spit it out, so I had to act like it was the best treat EVER!
But you know what - banana peels are not good dog treats.
So I had to carry the peel around, and whenever Mom tried to get it away from me, I ducked my head the other way, and acted like I had some great treasure.
Mom finally left me alone, and I carried the peel a little while longer so she would know I thought it was special, but then, when she wasn't looking, I dropped it in the middle of the floor in the store.
By then, Mom had forgotten about it - and she didn't remember it until a customer came in and saw the peel on the floor. Oooops.
Mom says that was my last banana peel. That's OK - I will just go find my friend Franklin and get some REAL treats!