Didn't read the other responses, so sorry if I overlap. It's really so much simpler than you think. Start out introducing cereals. Mix a Tbs with your breast milk or formula. Serve it very runny. Add more Tbs. Try many different grains, one at a time, over a couple weeks. Eventually, feed mixed grain.
Then, you can introduce veggies. I recommend this because if you feed bananas first, the baby may reject veggies. Bananas are much yummier. ;-) Sweet potato is a good start. Peel it, cut into cubes, cover with water and boil for 30-45 minutes until very soft. Remove the chunks, and don't discard the hot water. Scrape it through a strainer at first and add the water for consistency. If baby does well, you can just put through blender and watch for chunks.
Then try carrot, potato, green beans, etc. Finally, you can start mixing them...like veggie soup.
In a couple months, add a chunk of meat to you soup, and grind it up just the same.
I found this guide at Gerber a good reference for quantities. Good luck, and have fun. If you've boiled potatoes, you can make baby food!
http://www.gerber.com/Nutrition_Feeding/SHSH_Nutrition_Gu...
P.S. I do use ice cube trays to freeze the food. Each well is about a Tbs. I keep a big bag of baby food cubes in the freezer.
I use Mastrad Orka ice cube trays. It's easy to pop the food out and comes with lids.
http://www.orkamastrad.com/products.html