Step 1: Season the Chicken - Place the chicken breasts in the bottom of your slow cooker. Sprinkle the salt, black pepper, Italian seasoning, and garlic powder evenly over the chicken. This is your flavor foundation, so take a second to make sure everything is nicely coated.
Step 2: Build the Creamy Sauce Base - Pour the chicken broth and heavy cream over the seasoned chicken. Add the chopped sun dried tomatoes and red pepper flakes. Give everything a gentle nudge with a spoon just to make sure the liquid is spread out, but do not worry about stirring too much yet.
Step 3: Add the Cream Cheese for Richness - Scatter the cubed cream cheese over the top. It does not have to be perfect. The cubes will melt down into the sauce as everything cooks and create that creamy texture we are after.
Step 4: Slow Cook Until Tender - Cover and cook on low for about three to four hours, until the chicken is tender and shreds easily with a fork. This is where the slow cooker really earns its keep. Let it do the work.
Step 5: Shred the Chicken and Return It to the Sauce - Remove the chicken from the slow cooker and shred it using two forks. It should fall apart easily. Return the shredded chicken back to the slow cooker and stir it into the creamy sauce so every piece gets coated.
Step 6: Stir in Ravioli and Parmesan - Add the frozen cheese ravioli and the shredded Parmesan cheese to the slow cooker. Gently stir to coat the ravioli in the sauce without breaking them apart. This is where things start to feel like dinner instead of a sauce situation.
Step 7: Finish Cooking Until Ravioli Is Tender - Cover and cook for another thirty to forty minutes, just until the ravioli are tender and heated through. Give it one last gentle stir, let the sauce settle for a few minutes to thicken, and then serve it up while it is hot and cozy.