As long as you're careful, you can introduce meat once your baby is showing that he or she can chew well. For my son, it was around 7 months. For a lot of babies, it's later- 8-9 months. Most babies, mine included, won't eat anything with a "meaty" texture though (at first). My son won't even touch regular chicken! He'll eat ground meats, a little fish, or chicken patties (which aren't very healthy). So I have added in soft beans, soy products (nuggets, tofu, etc.), and cheese and yogurt. That's plenty of protein! (They don't need much protein in the first year. Their kidneys can't handle it.) You can also use almond butter, as long as there are no signs of allergies.
But all of this is still dependent on your child's chewing and interest. For the first year, it's all about breast milk or formula for nutrition. The food is just practice! There's no need to rush, and I wouldn't start adding in fancy stuff until your baby is up to 3 meals a day. Once you're at that point, slowly add in the other stuff, waiting a few days between each new food. Our biggest problem has been diaper rashes, when we go too fast. No big allergies- but who knew peas and blueberries could cause such trouble! :)
Good luck, and have fun feeding your baby!