Mexican Dip- Amex Party

2    c. sour cream
2    8 oz. cream cheese
2    c. shredded mexican cheese
1    package taco seasoning
1    can sliced olives (drained)
1    14 oz. can diced tomatoes (drained)
1    4 oz. can green chiles (drained)
1/4 c. finely chopped green peppers (optional)
 
Mix together and bake at 325 for 50 minutes