Or as the site, Garfield Minus Garfield, puts it:
Who would have guessed that when you remove Garfield from the Garfield comic strips, the result is an even better comic about schizophrenia, bipolor disorder, and the empty desperation of modern life? Friends, meet Jon Arbuckle. Let’s laugh and learn with him on a journey deep into the tortured mind of an isolated young everyman as he fights a losing battle against loneliness in a quiet American suburb.
I’ve often thought that Lasagna was just a personification of man’s struggle in the universe.