This Slow Cooker Chicken Parmesan gives you the flavors of the restaurant classic with no breading station and no hot oil. Chicken breasts simmer in marinara until tender, then get topped with melted mozzarella and Parmesan. A quick toasted panko topping on the side adds the crunch that a slow cooker cannot create on its own.

I grew up in an Italian and Hispanic family in New York, and chicken parm was one of those dishes everyone loved. It was also a project, with pounding, breading, frying, and a kitchen full of dishes. I run a business and a household now, and I want that same comfort without the cleanup. The slow cooker does the long part for me.

The key to this recipe is that I do not try to bread the chicken in the slow cooker. Breading steams and turns soggy in there, every time. Instead, the chicken cooks gently in sauce, and a small skillet of buttery toasted panko goes on at the end. You get tender chicken, a bubbling cheese layer, and a crisp topping, each doing its own job.

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Why You’ll Love This Recipe

• No Breading or Frying: There is no flour, egg, or oil splatter. The chicken goes straight into the sauce.
• Crunch Without the Mess: Toasted panko takes 4 minutes in one skillet and adds the texture that makes this taste like chicken parm.
• Tender Chicken: Gentle, moist heat keeps the chicken juicy, and the sauce soaks into every piece.
• Only Five Main Ingredients: Chicken, marinara, mozzarella, Parmesan, and panko cover most of it.
• Great Over Pasta: Serve it over spaghetti or any pasta shape, and spoon extra sauce over the top.
• Makes Its Own Sauce: The chicken juices blend into the marinara, so the sauce at the bottom is worth spooning over everything.
• Easy to Scale: Add chicken and a second jar of sauce for a bigger group, in a larger slow cooker.

Ingredients

Exact amounts are listed in the recipe card. Read on for what each ingredient does and how to substitute.

• Boneless Skinless Chicken Breasts: Two pounds, about four medium breasts. Very large breasts can be sliced in half to cook more evenly.
• Marinara Sauce: One 24 oz jar provides the sauce and the liquid. Choose a sauce you already like the taste of, since it is the main flavor in the dish.
• Italian Seasoning and Garlic Powder: These season the chicken directly and add herb flavor to the sauce.
• Salt and Black Pepper: Use a light hand with the salt, since jarred sauce and cheese both contain it.
• Shredded Mozzarella: One and a half cups melt into the gooey layer on top. Low-moisture, whole milk mozzarella melts best. Pre-shredded works, but shredding a block yourself melts more smoothly.
• Grated Parmesan: A quarter cup goes on the chicken and a little goes in the panko. Freshly grated has the best flavor.
• Panko Breadcrumbs: One cup, toasted in butter, gives you the crunchy topping. Regular breadcrumbs work but are denser.
• Butter: Two tablespoons toast the panko and give it a golden color.
• Spaghetti: Twelve ounces, boiled separately. Any pasta works, or serve with crusty bread or a green salad.

Tips For Making The Best Slow Cooker Chicken Parmesan

1. Do Not Bread the Chicken: Breaded chicken turns gummy in a slow cooker. The separate panko topping gives you the crunch without the problem.
2. Use Chicken of Similar Size: Pieces that are about the same size and thickness finish cooking at the same time.
3. Spread a Little Sauce Under the Chicken: A thin layer on the bottom keeps the chicken from sticking and scorching.
4. Check at the Low End of the Time Range: Slow cookers run differently. Start checking the chicken at 4 hours on low, and pull it as soon as it reaches 165°F (74°C).
5. Add the Cheese at the End: Cheese cooked for hours turns oily. Add it during the last 10 to 15 minutes, with the lid on.
6. Toast the Panko Until Golden: Stir it constantly in a dry or lightly buttered skillet for 3 to 4 minutes. It browns fast and burns quickly.
7. Add the Panko Right Before Serving: If it sits on the chicken, it softens. Sprinkle it on each plate just before eating.
8. Reserve Some Pasta Water: A splash loosens the sauce if it thickens on the pasta.

Step-by-Step Instructions

1. Spread ½ cup of the marinara sauce over the bottom of the slow cooker.
2. Season the chicken on both sides with the Italian seasoning, garlic powder, salt, and pepper. Place it on top of the sauce in a single layer, overlapping slightly if needed.
3. Pour the rest of the marinara over the chicken.
4. Cover and cook on LOW for 4 to 5 hours or HIGH for 2 to 2½ hours, until the chicken reaches 165°F.
5. Sprinkle the mozzarella and Parmesan over the chicken. Cover and cook on high for 10 to 15 minutes, until the cheese is melted and bubbling.
6. While the cheese melts, boil the spaghetti according to the package directions. Drain.
7. Melt the butter in a skillet over medium heat. Add the panko, a pinch of garlic powder, and 2 tablespoons of Parmesan. Stir for 3 to 4 minutes until golden.
8. Serve the chicken and sauce over the spaghetti, topped with the toasted panko and fresh basil or parsley, if you like.

Ways To Serve It

• Over Spaghetti: The traditional choice. Toss the pasta with a few spoonfuls of sauce from the slow cooker before plating so every strand is coated.
• As a Sandwich: Slice the chicken, pile it on a toasted hoagie roll with sauce and melted cheese, and add the panko for crunch. Leftovers make an excellent sandwich the next day.
• With Garlic Bread and Salad: If you want to skip pasta, serve the chicken with garlic bread and a crisp green salad.
• Over Zucchini Noodles or Roasted Vegetables: Roasted broccoli, zucchini, or green beans all take well to the tomato sauce.
• Chicken Parmesan Bowls: Spoon the chicken and sauce over rice or orzo and top with the toasted panko for a quick weeknight bowl.

Easy Variations

• Pesto Chicken Parm: Spread a spoonful of basil pesto on each piece of chicken before adding the cheese.
• Spicy Arrabbiata Style: Use a spicy marinara and add a pinch of red pepper flakes.
• Extra Cheesy: Use a blend of mozzarella and provolone, and add a spoonful of ricotta to each serving.

How To Store Leftovers

• Refrigerator: Store the chicken and sauce in an airtight container for up to 4 days. Keep the pasta and the panko separate.
• Freezer: Freeze the chicken and sauce (without pasta and panko) for up to 3 months. Thaw overnight in the refrigerator.
• Reheating: Warm gently in a covered pan or in the microwave in 60 second intervals, adding a splash of water or sauce if it looks dry.
• Fresh Crunch: Toast a fresh batch of panko when serving leftovers, since the old topping will not stay crisp.

Frequently Asked Questions

Can I bread the chicken first? You can, but it will not stay crisp in the slow cooker. For breaded chicken parm, bake or pan-fry the cutlets and use the slow cooker only for the sauce.

Can I use frozen chicken? It is safer to thaw it first. Frozen chicken takes longer to reach a safe temperature and releases extra water into the sauce.

What if my chicken breasts are very thick? Slice them in half horizontally. Thinner pieces cook more evenly and are less likely to dry out at the edges.

Can I use chicken thighs? Yes. Boneless thighs are more forgiving and stay juicy even if they cook a bit longer.

What cheese is best? Low-moisture mozzarella melts into a smooth layer. Provolone also works well, and a blend of mozzarella and provolone has more flavor.

Can I make it spicy? Use a spicy marinara or add a pinch of red pepper flakes to the sauce at the start.

Why is my sauce watery? Chicken releases juice as it cooks. For a thicker sauce, stir 1 tablespoon of tomato paste into the sauce at the start, or ladle some sauce into a pan and simmer it for 5 minutes.

What can I serve with it? Spaghetti, garlic bread, a Caesar salad, steamed broccoli, or roasted zucchini all go well.

Recipe Card

Slow Cooker Chicken Parmesan By Mercedes

Chicken breasts cooked in marinara, topped with melted mozzarella, Parmesan, and a toasted panko crunch.

• Prep Time: 10 minutes
• Cook Time: 2 hours 30 minutes to 5 hours 15 minutes
• Total Time: about 2 hours 45 minutes on high
• Servings: 6

Ingredients

• 1 jar (24 oz) marinara sauce, divided
• 2 pounds boneless skinless chicken breasts
• 1 teaspoon Italian seasoning
• 1 teaspoon garlic powder, plus a pinch for the panko
• ½ teaspoon salt
• ½ teaspoon black pepper
• 1½ cups shredded mozzarella cheese
• ¼ cup grated Parmesan cheese, plus 2 tablespoons for the panko
• 1 cup panko breadcrumbs
• 2 tablespoons butter
• 12 ounces spaghetti
• Fresh basil or parsley, for serving (optional)

Instructions

1. Spread ½ cup of marinara on the bottom of the slow cooker.
2. Season the chicken and place it on top. Pour the remaining marinara over it.
3. Cook on low 4 to 5 hours or high 2 to 2½ hours, until the chicken reaches 165°F.
4. Top with mozzarella and ¼ cup Parmesan. Cover and cook on high 10 to 15 minutes until melted.
5. Boil the spaghetti and drain.
6. Toast the panko with the butter, garlic powder, and 2 tablespoons Parmesan in a skillet for 3 to 4 minutes.
7. Serve the chicken and sauce over pasta and top with the panko.

Notes

• Do not add the panko to the slow cooker. It will turn soft.
• Store leftovers in the refrigerator for up to 4 days.

Nutrition (estimate per serving): about 570 calories, 46 g protein, 52 g carbohydrates, 19 g fat. Values are approximate and vary with brands and substitutions.

Did you make this recipe? Tag @lifewithmercedes on Instagram and use the hashtag #lifewithmercedes.