He's still pretty small to give solid food to. If you start them too soon on solid food you can wreck their stomach. Let him go for his mom's food when he's ready. That's the best way for him to start eating solid food, learning from her. He'll let you know when he's interested. If he's still nursing and mom's in good health then let him go. They usually start eating or showing interest in solid food at 4 weeks. You can try introducing some wet food to him or dry if that is what his mom likes. I just read an article the other day that advises that you offer kittens a variety of foods, wet and dry and different flavors and textures. That way you don't end up with a finicky cat. Most people believe just the opposite. I know from unfortunate experience, once they get hooked on just one food, it's difficult to change them. I have a 11 month old still hooked on Royal Canin Baby Cat food. He was showing an interest in raw meat, but now he won't even eat that, just that Royal Canin baby food. Good for him he's not greedy so he's not having any weight issues eating that high fat/calorie food.