Not on purpose.. but the bit of garden that is still 'lawn' is almost entirely moss, rather than grass.
I do on-purpose grow moss on a shaded shed roof, periodically I harvest it to make terrariums and suchlike. I just put wood on the roof to hold some 'media'- which was old potting soil and sand, put moss on it and put bean netting on top to keep it in place. The moss grows and I can take handfulls when I need it. I water it in the summer- it grows faster this way, it wouldn't die if I didn't water it.
Moss doesn't like really direct sunlight in my experience, and most crop plants do.
Lasagna is spaghetti flavored cake. Just like this tiny ad: