1. In a frying pan, heat oil and sauté onion until translucent. Add pepper strips. Let mixture sit until most of the liquid evaporates.
2. Add tomato sauce and spices and simmer for five minutes.
3. Cook penne according to package directions. Drain and pour into a 9×13-inch pan.
4. Pour the pepper mixture over the pasta. Add cheese and mix.
5. Bake at 375 degrees Fahrenheit for 30 minutes or until cheese is fully melted.
6. Mix and serve.