Heat skillet with 1 teaspoon olive oil to medium.
If chicken breasts are large, slice them in half to make them thinner.
Cook chicken in skillet about 5-7 minutes on each side or until cooked through.
Pour marinara sauce over cooked chicken in skillet.
Spread out pepperoni minis.
Top with cheese.
(optional) Add a few pepperoni minis on top of the cheese.
Broil 2-3 minutes. Cheese should be melted, bubbly and possibly slightly browned if you like that.
Serve with salad and pasta.