Meatball Casserole

Ingredients (16)

• 6 ounces whole wheat pasta any shape you love
• 2-3 slices whole wheat bread for making 1 cup fresh breadcrumbs
• 1 pound extra lean ground turkey
• 8 ounces spicy Italian turkey sausage casings removed
• 1 large egg lightly beaten
• 1 teaspoon kosher salt
• 1/4 cup freshly grated Parmesan cheese
• 1/4 cup chopped fresh parsley
• 4 tablespoons extra virgin olive oil divided, plus additional for tossing the pasta
• 1 small yellow onion
• 2 cloves garlic minced
• 1 teaspoon dried oregano
• 1/4 teaspoon crushed red pepper flakes
• 32 ounces prepared red pasta sauce about 3 1/2 cups
• 10 ounces frozen chopped spinach squeezed dry
• 8 ounces fresh mozzarella half shredded or torn, half cut into thin slices (part skim is OK but do not use fat free), about 2 cups total