You could try putting her kibble in the kong and then plugging it with peanutt butter he goes crazy every time we open the freezer thinking I'm grabbing his kong. The peanut butter will get here into the kong and then she'll have to figure out how to get the kibble out. it's funny watching Meeko. He'll push it around with his paws and just pick it up in his mouth and then drop it. lol very entertaining!
Meeko doesn't have set times he eats. When he wakes up he poops and then he'll wanna eat. Sometime if he sees us eating dinner, he'll wanna eat a little. Then around 8-9pm he'll poop again and eat more. I don't think he's getting chubby, he's just really long now. Oh and he gets the kong probably 4 or 5 days a week, depending if i remember to fill and freeze it the morning. I usually give it to him when we're getting ready to eat dinner so he doesn't bother us.
Try measuring out a cup of kibble every morning and then measuring it again at night. Do it for a week or 2 and see how much extra she's eating with the home cooked food.