Preheat oven to 350F

Slice chicken into strips using a sharp kitchen knife.

In 3 shallow bowls, place the flour in one, the eggs in the second, and the breadcrumbs and Parmesan in the third.

Place half of the oil and butter in a skillet over medium heat.

Dredge the chicken first in the flour, then the eggs, then finally the breadcrumb mixture.

Add each chicken finger to the skillet once coated.

Cooking about 6-8 chicken fingers at a time, cook 5-7 minutes on each side until cooked through and golden. Remove to a plate, add the remaining butter and oil, and cook the remaining chicken fingers.

Remove all chicken fingers from the skillet and remove the skillet from heat.

Wipe it down with a paper towel and add as many chicken fingers as you can in a single layer.

Add a Tablespoon of tomato sauce on top of each and then a sprinkle of mozzarella.

Place in the oven and cook until mozzarella is fully melted.