Step 1: Prepare the Chicken Meatballs: In a large mixing bowl, combine the ground chicken, breadcrumbs, Parmesan cheese, egg, minced garlic, Italian seasoning, salt, and black pepper. Mix until just combined, then roll into 1-inch meatballs.
Step 2: Optional Recommended Step, Sear Meatballs: Heat a tablespoon of the sun-dried tomato oil from the jar (or olive oil) in a skillet over medium-high heat or in a slow cooker with a sear function and sear the meatballs for 2-3 minutes until golden brown on all sides. This adds extra flavor but is not required.
Step 3: Assemble the Sauce Ingredients: Transfer the browned meatballs to the slow cooker. Add the sun-dried tomatoes, minced garlic, white wine, chicken broth, Parmesan rind (if using), dried basil, red pepper flakes (if using), salt, and black pepper. Cover and cook on LOW for 4-5 hours or HIGH for 2-3 hours, until the meatballs are fully cooked and tender.
Step 4: Add the Finishing Ingredients: In the last 30 minutes of cooking, stir in the heavy cream, baby spinach, and gnocchi. Cover and cook until the gnocchi is tender and the spinach is wilted. If you've been cooking on a low setting, bump the slow cooker heat to high.
Step 5: Serve and Enjoy: Remove parmesan rind if it didn't fully melt into the sauce. Give the sauce a final stir, taste, and adjust the seasoning if needed. Serve warm, garnished with extra Parmesan cheese and fresh basil. Enjoy this dish with crusty bread or a side salad!