eating

This is Kit at about 4 months old eating oatmeal for the first time.  Since then she has become a very picky eater.  She only likes strawberry yogurt.  She doesn't like the spoon to go in her mouth.  Her lips are sealed shut when she sees food.  If you force it she'll suck if off the spoon like a straw.  She HATES peas with a passion.  When she really has had enough she blows the baby food out of her mouth obviously not caring that the carrot flecks are staining her white shirt.  She likes the baby puff cereal and when I pop one into her mouth (she actually opens her mouth for those), she smiles like she has a secret.  When we feed her from a bottle she likes to pretend she's a hamster and has to sit up tilting her chin up.  Lola and Ava were so easy to feed, so I don't know how to handle this.