Pre-heat oven to 350 degrees.
In a blender, blend together the chicken broth and the sun-dried tomatoes and set aside.
In a saucepan over medium heat, add the cream and bring to a boil. Boil for 1 1/2 minutes until slightly thickened. Add the sun-dried tomato mixture to the cream and mix. Then add the Parmesan cheese, garlic powder, nutmeg, salt, and pepper.
Bring the mixture back up to a boil stirring constantly for another minute, or until all the cheese is melted, then remove the Alfredo sauce from the heat.
Cook the jumbo pasta shells to al dente (just barely cooked through) according to the instructions on the box, drain, and set aside.
In a 9" x 13" baking dish, spread 1 cup of the sun-dried tomato Alfredo in the bottom.
In a medium bowl, combine the cooked chicken, ricotta cheese, 1 cup mozzarella cheese, 1/4 parmesan cheese, eggs, minced sun-dried tomatoes, and spices. Mix together.
Add the chicken and cheese mixtures, about 2 tablespoons at a time, into the cooked pasta shells.
Place the pasta shells in the bottom of the baking dish. Spread remaining Alfredo sauce over the stuffed shells. Sprinkle 1 cup mozzarella cheese on the stuffed shells. Drizzle pesto on top of shells too.
Bake in your preheated oven for 35 minutes, or until cheese is melted and golden brown.
Remove from the oven and let it sit for 10 minutes before serving. Enjoy!