Chicken Alfredo Supreme Pizza

I recently entered this recipe in a Taste of Home contest - I'm keeping my fingers crossed;) Our family really enjoys eating it. Let me know what you think.

INGREDIENTS
1 Homemade Pizza Dough or you can use a 1 pound loaf of frozen bread dough, thawed
1 tablespoon olive oil
1 boneless, skinless chicken breast, cut into 1/2" cubes
2 tablespoons butter
1/2 teaspoon dried basil
1 cup half-n-half
1 egg yolk
1/2 teaspoon salt
1/4 teaspoon pepper
1/4 cup grated parmesan cheese
3 cups shredded mozzarella cheese
1/4 cup chopped sun-dried tomatoes
1/4 cup sliced button mushrooms
1/3 cup sliced black olives
1 small green pepper, cut into 1" strips
1 small onion, cut into 1" strips

DIRECTIONS
1. Preheat oven to 375 degrees.
2. Cook cubed chicken and basil in oil over medium heat till done, 5-8 minutes.
3. In a medium saucepan, melt butter. In a small bowl, whisk together half-n-half, egg yolk, salt, pepper and parmesan cheese. Add to butter and stir until thickened.
4. On a lightly floured surface, roll dough into a 15-in. circle. Transfer to a greased 14-in. pizza pan; build up edges slightly and prick with a fork. Bake for 10 minutes, remove from oven.
5. Spread alfredo sauce over dough to within 1/2" of edge. Top with 2 cups of mozzarella, chicken, peppers, onions, tomatoes, mushrooms, olives, and remaining cheese, in that order.
6. Bake for another 15-20 minutes in preheated oven. Let rest for 5 minutes before slicing.

To save time substitute 1 cup precooked, chopped chicken; 1.5 cups jarred alfredo sauce; a 14” ready-made pizza crust (following crust directions for baking); and pre-sliced mushrooms and olives. Or you could prep veggies, sauce, and chicken the day before and refrigerate.