As with all new types of food, make simple recipes with just the one ingredient before adding a whole slew of other foods you think your little one will enjoy. Testing for allergies right now is more important than how gourmet your meal can be.
Start with meats such as chicken, turkey, beef, and pork first. You can either bake or grill it (retains nutrients more so than the other methods) or boil (retain cooking liquid to puree), whichever is easier for you.
To make a meat puree, put a cup or two of cooked and cut up meat pieces into your baby food processor. I like to use the Magic Bullet because it's fast and easy to clean. Place 2 - 5 tablespoons of water or cooking liquid inside the container. Gradually add more of the liquid until the puree reaches your desired consistency. Serve immediately or refrigerate. You can also place the puree into ice cube trays for freezing.