I remember the first time I heard the term "polyculture". I had always grown herbs that way, and didn't even know it. Once I started growing veggies in combination, I found a lot of new possibilities. One of my beds is planted in peppers, tomatoes, sweet potatoes, Thai basil, Kabocha, beets, and kale. The pic I am attaching shows a bed with peppers, eggplants, cilantro gone to seed, broccoli, basil, zinnias, calendula, sage, and survivor chard that finished seeding and decided to come back for a second round.
Definitely more interesting than monoculture rows. The flea beetles still found my eggplants though.