Heaped Harvest

Food is an artifact type. Even though it appears on some creatures, it's never a creature type.

You can't sacrifice a Food to pay multiple costs. For example, you can't sacrifice a Food token to activate its own ability and also to activate Maraleaf Rider's ability.

Whatever you do, don't eat the delicious cards.

Heaped Harvest's first ability will trigger if it's sacrificed for any reason, not only if it's sacrificed to its last ability.