American Chop Suey | America's Test Kitchen

Ingredients

• 12 ounces (3 cups) elbow macaroni
• Salt and pepper
• 3 tablespoons vegetable oil
• 2 pounds 90 percent lean ground beef
• 1 large onion , chopped fine
• 1 green bell pepper , stemmed, seeded, and chopped fine
• 2 celery ribs , chopped fine
• 2 tablespoons tomato paste
• 4 garlic cloves , minced
• 1/4 teaspoon red pepper flakes
• 1 (29-ounce) can tomato sauce
• 1 (14.5-ounce) can diced tomatoes
• 1 cup water
• 1 ounce Parmesan cheese , grated (1/2 cup), plus extra for serving