Preheat oven to 350F. Spray a 9x13-inch baking pan with oil.

Pour French Fried Onions into a large zip top bag; seal. Use a rolling pan to crust the onions. Pour into a shallow dish.

Whisk together melted butter, worcestershire sauce, ground mustard, garlic, salt and pepper in a separate shallow dish.

Working with one chicken tender at a time, dip the chicken in the butter mixture and then roll in the crushed onions. Transfer to prepared pan. Repeat with remaining chicken.

Bake for about 20 minutes or until chicken is cooked through. If the onions start to get too dark, make an aluminum foil tent over the pan to prevent more browning.