Do I have to wait until my son has teeth and can chew before introducing him to meats?

no u don't have to wait for teeth. either puree meats and veggies like in baby food jars or chop it up real fine and let him gum the meats to get used to chewing. i would puree meats separately from the veggies so u can introduce them so that if they cause an irritation u know what food is doing what. like allergies. say if u give him beef, potatoes and peas and he has a reaction then u can take out one and see what is causing a rash so it is best to intro one new food at a time wait a few days and proceed with the next. whatever u have for dinner u can feed him if u puree it first as long as it isn't too spicy. talk to the doctors about finger foods to help the teeth break through the gums but watch him while he has food so he doesn't choke. especially on the finger foods. good luck