[poulsbohemian]

> I made this mistake burying the cat in the back garden. There is now a dent in the lawn where I buried him.

General speaking, you can add top soil loosely over the grass until the ground is level, and the grass will grow through it. This is assuming a depression of only a few inches of course - will be harder to accomplish if it’s more than that. That said - I once tried to smother some lillies by added several feet of dirt on top of them - they grew through anyway.