1. Preheat oven to 400 degrees Fahrenheit. Get a piece of tin foil that's large enough to wrap the chicken in.
2. Put the chicken breast in the middle of the foil, then pour the salsa, pepper and olives on top. Close the chicken up in the foil and put on a baking sheet.
3. Bake for 60 minutes and then serve. If you make extras, put them in microwave safe dishes and freeze.