Veg plot project

So next question regarding paths for around the new beds. I'm considering moving away from grass paths to reduce the need to mow as often during summer and to stop couch invading my beds. My thoughts are low maintenance and preferably beneficial to the local wildlife.
I have considered just dirt paths but am concerned they may become weed strewn. I thought about wood chips but am aware I would need to replace it every few years which may become costly.
Another thought that crossed my mind was to replace the grass with another green carpet, eg white clover, camomile? Thyme? A mixture? Something that could be walked on but wouldn't grow as high or as fast as grass. I don't mind mowing it from time to time.