The problem is that you're baking instead of frying. It's tough to get the same texture as fried chicken without, well, frying it.
I've made two runner ups to the real thing in the past: double breaded and drizzled with margarine in the broiler or using crushed corn flakes and baking, with the former being the better out of the two.
Assuming a pound of chicken or so...
Recipe #1
1 cup bread crumbs
1/2 teaspoon salt
1/4 teaspoon pepper
1 to 2 teaspoons of cayenne pepper (choose your pain)
1 or 2 dashes of garlic powder
2 or 3 egg whites
2 tablespoons light margarine
Either add the first four ingredients to the bread crumbs or to the egg whites. Your preference. Beat the egg whites until a slight head forms. Dip the chicken in the egg whites, cover it in batter, dip it again in the egg whites, again in the batter.
Put the chicken on the tray five inches from the broiler for five minutes on each side or so.
Recipe #2
1 cup of coarsely crushed corn flakes
1/2 teaspoon salt
1/4 teaspoon pepper
1 to 2 teaspoons of cayenne pepper (choose your pain)
1 or 2 dashes of garlic powder
2 egg whites
Same as above. Just one dip and in the oven at 375 degrees on a nonstick baking pan for about 45 to 55 for breasts, 20 to 30 for tenders. I suggest adding the spices to the corn flakes in this case, as they're rather bland compared to most store brand bread crumbs.
If you have poultry seasoning, by all means, substitute it for the salt, pepper, and garlic. I usually add thyme and basil to these, but that's just my own taste. Add whatever spices you prefer.
--Tom