Season the chicken breasts on both sides with salt and pepper.
Dredge each piece in flour, dip in the beaten eggs, and then coat in a mixture of Italian breadcrumbs and grated Parmesan.
Heat olive oil in a skillet over medium-high heat. Quickly fry the chicken for about 2 minutes per side, just until golden. (You’re not cooking it through here — just getting that crispy coating started.)
In a large bowl, mix together the pasta sauce, tomato sauce, Italian seasoning, and minced garlic.
Spread half of the sauce mixture across the bottom of your slow cooker.
Place the browned chicken breasts on top, then pour the remaining sauce over them. Sprinkle with a little extra Italian seasoning if you’d like.
Cover and cook on low for 4 hours, or until the chicken is tender and cooked through.
During the last 15 minutes of cooking, top with mozzarella cheese. Cover again and let it melt into that perfect, gooey layer.
Serve over cooked pasta and garnish with fresh parsley and basil right before serving.