What kind of dogs are you, anyway?

Since our two older dogs have passed away, we only have the young pups left. The new generation, if you will. Kai is the oldest, about 2, a husky, malemute, wolf mix and Panter is the daughter of an American bulldog and something else. She's about 1.

The older dogs ate anything we fed them. Put it in their bowl, they'd eat it. Or just leave it on the counter, they'd find it. Or leave a bag of kibble in the closet and don't close the door completely, they'd find a way to stick their noses in and gradually empty the bag. (Their fun was over when I caught one of them walking away from the closet discreetly munching. It caused me to investigate and I found the opened half-empty bag!) When they got older, we started making their food so that they wouldn't be so overweight. Less fillers, etc. But they never complained.

Now we have the new generation.  We were already making food for our dogs, so we continued in the same tradition. We also augmented with a little high-quality kibble. I don't know when this started, but it seems that after they eat the same mixture twice, they don't want it the third time. They want something new. Say what??? You're dogs!  We have to beg them to eat! Ludicrous! These are the dishes we have served them:
Plain kibble
Kibble with raw egg
Kibble, brown rice, broth, chicken
Kibble, brown rice, broth, hamburger
Brown rice, chicken, cooked egg
Brown rice, beef, cooked egg
Brown rice, pork, cooked egg
Brown rice, pork, pumpkin, kale, broth
Brown rice, chicken, pumpkin, broth, kibble
Raw beef, brown rice, kibble
Raw beef, brown rice

And probably other combinations also. As you see, we even tried the raw meat option. The liked it the first two times, but lost interest the third time they faced it. Is it really possible that they get bored with their food? They are not thin, but they're not really overweight, either. That is, I don't think that we are over feeding them. They don't eat anywhere else, except for sticks, bones, bugs, and leaves from the yard! They do posture a bit over the bowls and the right-of-way at food time, though. That may have something to do with it. I just don't know.

It is very undogly behavior!