I have an area outside the raised beds but near them, I toss an array of mixed salad seeds that grow fast/ micro greens mixes/safe flowers /lettuce, they LOVE lettuce too much/radish (they eat the tops)/ any of the cabbage and broccoli (but they never get to mature in the chicken garden) lol. I take herbs when trimming them and root bunches along the edges for them to pick at, basil/oregano and mint are fast rooters.