Growing vegetables indoors for extra money  

I love planting veggies, I can suggest you tomatoes and peppers they occupy less place and very fruitful so with the less place you can have lots of veggies. Especially it is hard to find organic tomatoes out , so maybe you can make some money over them :) Good luck!

That's good, you;ll be adding some additional incom by that.
Just make sure that you know what you are doing.
It will surely cost you much money to do that, so better think wisely.

And one more thing. Love it don't hate it. ^_^

Forget it. It sounds to me as if you have no idea what growing food indoors would involve. The expense of providing the necessary light levels (fluorescent lights, electricity), potting soil or other growing medium, containers, water, fertilizer, would make it unprofitable for anything except a hobby or providing yourself with some fresh veggies. Plants like tomatoes have to be pollinated in order to produce fruit. Do you know how to do that? It isn't even a matter of which would be the most profitable, but which ones will survive and do well enough to be worth the bother.

wow that is a great idea. i remember when im in high school we use to plant an eggplant, tomatoes, ginger, garlic and onion, also try to plant a cactus which can grow at a minimum time.

If your are really thing about doing this, please do some research first and start small. There will be some up front cost for pots, soil, and more importantly a good light source. I have years of experience in vegetable growing outdoors, high tunnels and green houses. It is easy to grow something. selling it is the trick. Which requires it be the good consistent quality. If I were you I would stay away from the tomatoes and peppers. Yes they are easy to sell but if you do not have the right environment (hard to get with artifical light)you will not come out with a quality produce. Beside that you probably do not want to turn bumble bees lose in you house. They are needed for pollenation of both those plants. Now that I got throught the negative. If you really want to try something, try micro greens. They are easy to grow very nutrient and popular with upscale restraunts. I sell them for $80 per pound. Even here in Missouri. Now it take work to get one pound. About 3 trays but I usually sell in 1/2 pt or 1 pt quantities. It also takes work with the right person in teh restraunt to get them to buy your produce. Marketing 101. Micro greens also like cooler weather and low light. basic job lights at Home Depot or lowes will work. And you can turn the heat down in the winter in that room and they will love it.