Preheat a large pan filled with about 1/2 inch to 1 inch of oil. Heat over medium low.
Place flour in one bowl, eggs beaten in a second, and both kinds of bread crumbs mixed in a third.
Roll the cheese sticks in flour until covered.
Dip cheese sticks in beaten egg, cover completely.
Dip cheese sticks in breadcrumbs, and roll to cover completely.
Repeat steps 4 and 5.
Place the mozzarella sticks (a few at a time) in preheated oil, and fry until crispy and browned, about 2 minutes on each side.
Repeat with remaining mozzarella sticks.
Keep mozzarella sticks warm in an oven set at 200 degrees, or microwave for 30 seconds to warm.
Enjoy plain, or dipped in ranch or marinara sauce. Yum!