These are some Basil seedlings that are ready to be put into much larger containers.
But even at this point, a leaf pinched off a few of the plants will be great for using fresh in the kitchen.
Just take one leaf, no more from each plant. Later, once the Basil plants are larger, you can harvest several leaves from each plant.
As the plant gets larger, pinch the center stem. This will stop it from growing taller.