Combine bread crumbs, 1 Tbsp. Hellmann's® or Best Foods® Real Mayonnaise and parsley in small bowl. Cook bread crumb mixture in small nonstick skillet over medium heat, stirring occasionally, until golden; set aside.
Heat oil in large skillet and brown chicken over medium-high heat, stirring occasionally. Add onion and cook, over medium heat, stirring occasionally, 3 minutes. Stir in tomato puree, paprika and garlic and cook until onion is tender, about 2 minutes. Stir in diced tomatoes and bring to a boil over high heat. Reduce heat to low and cook, stirring occasionally, 5 minutes. Stir in remaining 2 Tbsp. Hellmann's® or Best Foods® Real Mayonnaise and cheese until cheese is melted, about 4 minutes.
Add hot spaghetti and toss with tongs until combined. Sprinkle with toasted bread crumbs.