Preheat oven to 350-degree F.
In large saucepan over medium heat, heat oil; add peppers, onion and mushrooms. Cook 5 minutes or until peppers and onion are tender, stirring occasionally.
Add tomatoes with juice, tomato paste, pepperoni and seasonings; heat to boiling. Reduce heat and simmer 5 minutes. Add salt and pepper to taste.
Meanwhile, prepare pasta according to package directions; drain. Toss hot pasta with sauce and pour into greased baking dish. Sprinkle with cheese.
Cover and bake 30 minutes.
Servings 0