Few suggestions thou.

You may want to add a few alternatives especially for breakfast and lunch, it will get really repetitive if you eat the same meal for a long period of time.

Also, try and limit the carbs as much as possible. For example with the dinner part, I would focus more on the fish, meat and and rice (good carb), vs spaghetti ( which is a complex carb).

You also have quite a bit of dairy in that diet, which you could try to limit as well, just because of the fat content factor. The dairy you have choosen is the best choices thou, cottage cheese, yougurt and such, I would just becareful not to overdo it on that.

I think its good you have included fruits, try and focus more on the less sugar type of fruits. Strawberries and Bananas tend to be high in calories and sugar as far as fruit goes, so maybe alternate with an apple instead. Some of the best fruits are the ones with antioxidents (helps prevent cancer) like blueberries.

I don’t think half a cookie will make a huge difference. but you should always avoid baked goods or prepacked type foods as much as possible, because of the peservatives and sugars in them.

You could also look into different type of breads, many health food stores carry a wide variety of breads that are far less carbs, like flax seed and even rice based.

Calories are important to watch for, but only when you combine it with how many nutrients you are getting out of the food you eat as well as the amount of fat content.

Hope that helps some, but definately think you are on the right path