The thing to understand about Garfield is that he is a cat, and thus is not subject to the strictures of the 9-5 work week, so his hatred of Mondays represents not the reality of capitalist labor, but its internalization as an ideology, even in the absence of the external pressures that condition human labor. Likewise, cats lack the physiognomy that would make regularly digesting lasagna tolerable; it is consumption as a mode, rather than lasagna as a substance, that compels him.