Relax, silly. Nothing you listd here is going to damage your child.

People think "healthy" food has to be nasty. It doens't. Make a few small choices. Get whole grain spaghetti instead of regular stuff. Buy light mayo and make a simple turkey sandwich. Choose baked chips. Baked potatoes. Chicken breast stuck in the oven for 20 minutes are really good. Instant rice (brown or white) etc. It doesn't have to be greasy or dripping with cheese to be yummy and still healthy.

And hey-- cereal is pretty good too! even stuff like cinnomon toast crunch, if you read the nutrition panel, doesn't have very much fat and is fortified with lots of great vitamins and iron.

The trick is finding things you genuinely like that aren't so bad, not trying to force yourself to like other stuff. And as long as you aren't constnatly going, "eww, gross, dont eat that!" to your child, he or she will decide for themself what they like.