Easy Chicken Parmesan

Name: Easy Chicken Parmesan
Ingredients: 1/2 large yellow onion , grated (don't cut onion in half, just grate half of a whole onion), about 3/4 cup of grated onion; 1/4 cup extra virgin olive oil; 2 medium garlic cloves , minced; 1 ( 28 - ounce ) can crushed tomatoes; 1 teaspoon dried oregano; Pinch red pepper flakes; Pinch sugar; 4 chicken breast cutlets (1 1/4 to 1 1/2 pounds ); Salt; 2 large eggs; 1 cup breadcrumbs , panko or homemade; 1 cup freshly grated Parmesan cheese; 2 tablespoons fresh basil leaves , thinly sliced; 8 ounces mozzarella cheese, sliced; Cooked spaghetti , or sub rolls