Baked Spaghetti Bolognese

Name: Baked Spaghetti Bolognese
Cuisine: European, Italian, Mediterranean
Ingredients: 16 oz spaghetti, uncooked; 1/4 cup olive oil; 16 oz jar pasta sauce; 12 oz cooked ground beef; 1/2 chopped onion; 1/2 cup diced red peppers; 1/2 cup diced green peppers; 1/2 cup chopped fresh Italian parlsey; 1/2 cup chopped fresh basil; 3 cups broth; 1 tsp oregano or italian seasoning; 1 tsp salt (more or less to taste); 1 tsp black pepper (more or less to taste); 5 cloves garlic (minced); 1 cup parmesan cheese shavings