If there is one vegetable that I love growing the most, it has to be radish. It's almost impossible to go wrong with growing radish.
If you have no garden space, you can grow radish sprouts inside your home. Just pick a bright spot and sow some seeds in a shallow tray filled with some growing medium and you can harvest in under 10 days. Remember to keep the soil moist but do not drown the seedlings. I even grow mine in bowls. Young radish sprouts are slightly spicy (like wasabi) and they taste great in salads.
If you have outdoor space, try growing radish in a deep pot or on the ground. There are so many varieties to choose from. I'm currently growing cherry radish. Thinly sliced radish goes well with flavourful cheese!