In a small, wide bowl melt the butter and stir in the lemon juice.
In a separate small, wide bowl, mix together panko, breadcrumbs, grated parmesan, garlic powder, salt, pepper, parsley, oregano, onion powder and grated lemon peel.
Cut the boneless, skinless chicken breasts in thirds or fourths.
Dip the chicken tenders into the butter mixture.
Bake at 400 degrees for 20-25 minutes, until cooked through.
Optional: use a thin, metal spatula/turner to flip the chicken tenders (making sure to scrape up the coating along with the chicken) halfway through cooking to help brown both sides.
To brown the chicken tenders a bit more, put them under the broiler for a couple of minutes.