If there is a small extra space at home it is best to have a vegetable garden. A small pocket garden that can accommodate 5 to 10 plants would be good enough. It is not really the quantity of the harvest but the joy of seeing the producrtivity of the plants.
Having 1 okra plant, 1 tomato and 1 chili plants, you can imagine what you will see when they are having fruits. Take note that planting materials are free. Just plant the seeds when you buy vegetables for the kitchen.
Do you buy vegetables in the farmer’s market?