1 pound meatballs see note 1 tablespoon olive oil 1/2 medium onion chopped 4 cloves garlic minced 1 (28 fluid ounce) can crushed tomatoes I used fire roasted 4 cups beef broth 1/2 red bell pepper chopped small 1/4 teaspoon Italian seasoning 1/2 teaspoon crushed red pepper flakes optional 1.5 cups fusilli pasta 1/4 cup…