Spaghetti Sauce

Ingredients

• 1 lb 85% lean ground beef
• 1 large yellow onion, chopped
• 12 cup green sweet pepper, chopped
• 14 cup celery, chopped
• 12 cup carrot, chopped
• 1 cup white mushroom, sliced
• 2 garlic cloves, minced
• 1 tablespoon extra virgin olive oil
• 2 (14 1/2 ounce) cans tomatoes, undrained and cut up
• 1 (6 ounce) can tomato paste
• 1 (737 g) jarprego pasta sauce with mushrooms
• 2 tablespoons fresh parsley, chopped
• 1 tablespoon fresh basil, chopped
• 1 tablespoon fresh oregano, chopped
• 2 teaspoons fresh marjoram, chopped
• 1 teaspoon sugar
• salt, to taste
• pepper, to taste
• parmesan cheese, grated