[rurp]

I've had good luck using low tech puzzle feeders with my cats. Each one is a bowl with a maze inside or a tower with various windows and trap doors they need to work the food out of to be able to eat. As the food levels get lower the pieces get harder to reach, which allows their laziness to take over and stop them from eating too much.

One example: https://sep.yimg.com/ay/entirelypets/kyjen-dog-games-slo-bow...